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YOKOGAWA TRAINING Section 5. CS3000 FCS Functions

SECTION 5

CS3000

FCS FUNCTIONS

CONTENTS

5 FCS FUNCTIONS____________________________________________________ 5-2

5.1 FCS DEFINITION _____________________________________________________ 5-25.1.1 Creating A New FCS _________________________________________________________ 5-25.1.2 FCS Property Configuration____________________________________________________ 5-3

5.2 FCS CONSTANTS _____________________________________________________ 5-55.2.1 Definition Item______________________________________________________________ 5-55.2.2 Detailed Setting Items ________________________________________________________ 5-6

5.3 Idle Time and Scan Rate Considerations ___________________________________ 5-8

5.4 Process I/O Definition - LFCS/PFCS_______________________________________ 5-95.4.1 Procedure __________________________________________________________________ 5-95.4.2 Node Definition ____________________________________________________________ 5-105.4.3 Configuration ______________________________________________________________ 5-12

5.5 Process I/O Definition - KFCS ___________________________________________ 5-155.5.1 Procedure _________________________________________________________________ 5-155.5.2 Configuration ______________________________________________________________ 5-16

5.6 Process I/O Definition - Common ________________________________________ 5-175.6.1 Detailed Definition for Analog I/O _____________________________________________ 5-17

5.6.2 Parameters for Relay & Contact Inputs/Outputs ___________________________________ 5-265.7 PLC Communications__________________________________________________ 5-31

5.7.1 Subsystem Data Identification _________________________________________________ 5-325.7.2 Communication Specifications - Modbus ________________________________________ 5-345.7.3 Setting Items from System View - Modbus _______________________________________ 5-365.7.4 Setting Items in the Communication I/O Definition Builder - Modbus __________________ 5-395.7.5 Bit Configuration ___________________________________________________________ 5-45

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5 FCS FUNCTIONS

Objectives: This sections covers common functions related to the FCS. The trainee will learnhow to set up the basic FCS parameters that need to be defined before control functions can

be defined.

5.1 FCS DEFINITION

5.1.1 Creating A New FCS

When a project is created, an FCS is automatically created. A new FCS can be added in one

of two ways:

1. Select [FILE] [CREATE NEW] [FCS]2. Click on an existing FCS in the System View and drag it to the Project Name.

A dialog box will appear titled Create New FCS. The items to configure are as follows:

Type

Constant

Constant2

State Transition Line

Network

Edit

See below for detailed information on configuration of these items. A new folder within the

project will appear titled: FCSxxyy, where xx is the Domain number and yy is the Station

number.

Within the FCS folder are eight sub-folders:

CONFIGURATION contains the FCS configuration items

SEQ LIBRARY contains SEBOL definition items

IOM contains I/O card and point definition items

SWITCH contains internal switch definition items

MESSAGE contains message definition items

FUNCTION BLOCK contains control drawings for defining plant controlfunctions

DISPLAY contains control drawings in graphical display format

APPLICATION

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5.1.2 FCS Property Configuration

The PROPERTIES dialog box appears for an FCS under the following circumstances:

1. The FCS is first created2. Clicking on StnDef in the Configuration Folder of an existing FCS with the right mouse

button and selecting properties.

There are five tabs in the dialog box and the configuration items within each are as follows:

5.1.2.1 TypeStation type (only available when first defining project)

Select from the different types of FCSs available according to Section 2.4.2

(System Configuration)

Database Type (only available when first defining project)

Select from the different module mixes appropriate for your application

according to Section 2.4.4 (System Configuration).

Station Address

1. Station Number a number between 1 and 64. Note that it is theconvention to start from 1 and count-up for each new FCS. This

address must match the address on the CPU card.

2. Domain Number this number must match the domain on the CPUcard

5.1.2.2 ConstantFast/Medium Scan Enable the fast and medium scan facility in the FCS.

Fast & medium scan can be set between 50 and 1000 msec, although the menu

provides 200 and 500 msec only. Any function block set to fast or mediumscan will have this scan rate. See section 5.3 for design considerations when

using scan rates.

MC Block Set the pulse width (seconds) for the output pulsing of a Motor

Control block. This, and serial start up are discussed further in section 6.2.

Options Select from a list of optional software to be loaded into the FCS and

add it to the list (eg, dual redundant serial card software)

MLD-SW AUT/CAS Defines the function of the AUT/CAS mode for this

module. See section 6.2 for more details.

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Action When Changing IOM If Block IOP is selected, when a single

analog card is removed, all cards in the same nest go to IOP

Action Type of SEBOL drive Statement - There are 3 action types of

SEBOL drive statement that may be specified. See the section on SEBOL

for the different action types for the "drive" statement.

Blocks with User-Defined Data Items - When using blocks with user-defined

data items (SFC block, unit instrument), a specific area for the user-defined

blocks needs to be specified. [Number of Block Type] displays the allowed

number of block types for the current type of FCS database. [Block-type start

number] may be set with reference of the [Number of Block Type]. For

example, if the allowed number of block types is 20 for both FCS0101 and

FCS0102, and the [Block-type start number] for FCS0101 is set to 0, the areas

from 0 to 19 is re-served for FCS0101. Thus the [Block-type start number] for

FCS0102 may be set to 20 or greater.

5.1.2.3 Constant2SS-DUAL PV Update during Deviation Alarm - When checked, if a

deviation alarm occurs when the switch position is 3, the data status of PV will

become BAD but the PV itself will continue to update vary with the selected

input signal. The default is not checked, so that when a deviation alarm

occurs, the SS-DUAL will hold its current PV.

5.1.2.4 LineDefine dual-redundant RIO Bus (see Section 1) and if repeaters are installed.

Only available when first defining project.

5.1.2.5 NetworkRefer to the Section 2 on System Configuration for more details

5.1.2.6 EditDefine if control drawing builder is being used. If not selected, function block

definition table is used. Only available when first defining project.

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5.2 FCS CONSTANTS

The FCS Definition panel appears when the StnDef icon is double clicked. Note that not all

the tabs appear when first called up. These appear when Detailed setting Items in the View

menu is selected. The following tab items appear:

Definition Item

Detailed Setting Items

5.2.1 Definition Item

5.2.1.1 Start Condition

The start condition determines which method to be used, initial cold start or restart,

to initiate the FCS, upon turning on the power to FCS which was in the power

shutoff status. FCS performs either initial cold start or restart according to the

specified start condition as follows:

Manual - Initial Cold Start

Auto - Restart

Time - Initial Cold Start after long term power failure- Restart after short term power failure

See IM 33S1B30-01E Section C2 for moredetails on the Start Operation.

5.2.1.2 Digital Filter Coefficient

There are three kinds of digital filter coefficients. These digital filter coefficients are

set by the FCS Constant Definition builderfor each FCS.

Digital Filter Coefficient 1: 0 to 1.00 (0.01 unit)



The defaults for these digital filter coefficients are set to the values indicated below.

Digital Filter Coefficient 1: 0.5 - (When the digital filter coefficient is 0.5and scan period is 1 second, the time constant is 1 second)

Digital Filter Coefficient 2: 0.75 - (When the digital filter coefficient is0.75 and scan period is 1 second, the time constant is 3 seconds)

Digital Filter Coefficient 3: 0.875 - (When the digital filter coefficient is0.875 and scan period is 1 second, the time constant is 7 seconds)

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5.2.2 Detailed Setting Items

Defines the operation group in which the FCS resides.

5.2.2.1 Windup Operation

Windup operation is a preparatory processing for organizing time-series data that are

required for control operations. The function blocks input signal processing, control

processing, calculation processing and alarm processing executed during windup

operation are executed in the same manner as in normal operation. All output signal

processing, except for the one that outputs control output signals to the process

output terminal, are executed in the same manner as in normal operation.

Sequence table blocks dont operate while windup operation is running.

The windup operation time is set on the FCS constant definition builder.

Wind Up Time: Set 0 to 100 (sec.).The default is 60 sec.

5.2.2.2 Idle Time in Processing at FCS

The setting of the processing executed in the idle time in FCSs CPU is defined in

SEBOL/User C time ratio on the FCS constant definition builder. This time

ratio is set as [100 %] as default, means the total idle time of the FCS CPU is used bySEBOL.

5.2.2.3 Repeated Warning Alarm

The repeated warning alarm retransmits a process alarm message to notify the

operator that a critical alarm is continuing to occur.

The cycle of the repeated warning alarm is defined for each control station in the

FCS Constant Definition Builder.

Repeated warning alarm cycle: The setting value is between 1 to 3600seconds.

Default is 600 seconds

5.2.2.4 Alarm Mask Specification for Initial Cold Start

The repeated warning alarm has a function in which at initial cold start (include

recovery from a long period of power failure) of the FCS, only the high-priority

alarms are picked up from all the alarms and issued to the operation and monitoringfunction.

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When the initial cold start for the FCS is executed, as a rule, only the alarms that

were newly activated after start are transmitted to the operation and monitoring

function by the alarm mask function. However, for the alarms that are set as repeated

warning, if alarm is in process, the process alarm message is transmitted even though

it was not newly activated.

However, if it is set as alarm mask disabled in the FCS constant definition builder,

every alarm that is in progress will be classified as newly activated, and the process

alarm messages will be issued at initial cold start.

5.2.2.5 Inter-Station Communication Period

The inter-station communication period is the time required to complete all inter-

station data link processing within an FCS. It is specified in the FCS constantdefinition builderas an FCS-specific constant. The default is one second.

5.2.2.6 Re-transmission skip when Communication Error detected

When a communication error is detected during inter-station data link processing,

interstation communication transmission skips for a period of time then retries the

transmission in the interval of this skip period. This re-transmission skip period is

expressed as follows:

Re-transmission skip period =

(Inter-station communication period) / (re-transmission skip time)

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5.3 Idle Time and Scan Rate Considerations

The FCS CPU performs its functions at a fixed scan rate. Generally most functions are

performed at a 1 second scan.

The highest priority tasks are the Operating System house-keeping functions and the Function

Block execution. Other tasks are performed in the time left within the scan. This period is

known as the idle time.

O/SFns

Function BlockProcessing

Idle Time

Scan 1 Scan 2 Scan 3

200 msecFunction Block

Processing

Idle Time

Read Inputsfrom FIO

card

Write outputs

to FIO card

O/S Fns The Operating System functions also include the Vnet functions, such ascommunication of data to the HIS, and ADLs to other FCS. This has the highest

priority.

Function Block Processing this includes reading the required I/O from the FIO (orSIO or RIO) bus card, performing all of the basic scan (1 sec) function block

processing (except SEBOL, C and SFCs), and writing the outputs to the FIO card.

Idle Time all of the low priority tasks are performed during the idle time. Thisincludes SEBOL and C programs. There is no guarantee that these functions will be

completed within the scan, or even at all, if there is no idle time.

Idle time is monitored on the FCS Status Display (HIS Operator screen) and is expressed in

seconds/minute. It is an average of the idle time from all of the scans. Thus:

an idle time of 60 secs/minutes means no load an idle time of 0 secs/minute means full load

If the function block processing takes more than 1 second, the CPU will complete the rest of

the processing in the next scan (after the operating system functions) before starting the next

function block processing cycle. As such, the FCS will continue to control the plant

satisfactorily. However, timers will run slow, as these are actually counters that count 1

second per scan.

Fast and Medium scan blocks are executed during the period between the system functions

and the end of the cycle. Each of these have an idle time, and the total idle time is

significantly affect by the processing of high speed blocks.

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5.4 Process I/O Definition - LFCS/PFCS

The physical specification and installation of process I/O was described in section 1, System

Overview. This section described the process of defining I/O in software through SystemView.

5.4.1 Procedure

First, a NODE must be created. This is a subfolder within the IOM folder. The total number

of Nodes that can be created for one FCS is 8. Once these are created, I/O cards can be

placed within them

To create a new NODE and I/O module:

1. Open an FCS folder2. Click on the IOM folder3. Either Select [Create New] from the File menu

Or Click on the IOM folder with the right mouse button and select [Create

New]

4. If the control station is a PFCS then goto step 6. If it is a LFCS, then a Node must becreated for the IOM to be placed in. Select [NODE]

5. Select the node number and click on [OK]6. Select [Create New], [IOM]

7. A dialog box appears where the nest and card type are selected. See Section 1 for detailsof the nests and cards available.

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5.4.2 Node Definition

When a new LFCS is added, one node is automatically created. You can create more nodes,

delete existing nodes and change node properties.

The following are node setting items:

Node Number

The node number is a number to identify a node, which is set between 1 to 8.

The default is 1. The value set must match the dip switches on the RIO bus

card of the node.

Dual-Redundant Power Supply

Select Yes or No for dual-redundant power supply. The nodes usually

supplied have dual redundant power supplies.

Installed Method

Select Cabinet or Rack to install nodes. The nodes supplied here are rack

mounted.

HKU Set

Select Yes if you use a housekeeping unit (HKU), No if you do not. Thedefault is No. If the air aspiration and exhaustion temperatures are 35

degrees C or more and 40 degrees C or more in the I/O Expansion Cabinet

respectively, the HKU turns on a fan to check a rise in the temperature.

Component Number

The component number is a number given to the cabinet to install FCS units,

which is used to identify where to connect a cable. Up to 8 characters can be

used for the number. No characters are entered as the default. This field may

be left blank.

Node Comment

Up to 24 single-byte characters or 12 double-byte characters can be used for

the node comment. No characters are entered at the default. This field may be

left blank.

Start Mode

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This is the start mode on I/O units. Set time within 1 to 16,000 msec, or select

MAN (manual). The default is 2,000 msec. This item is set with for each

I/O module defined.

Initial Cold (MAN) Start for Process I/O area

Initial cold start for process I/O is started with the value the output

module actually outputs at operation start. An initial cold start is

executed for recovery from prolonged power failure, power

disconnection for maintenance, or termination of transmission due to

transient failure.

The following describes the output operation of initial cold start for

process I/O area.

Upon completion of maintenance of power recovery, output is

started from tight shut status (analog output) or from OFF status(contact output).

For recovery from termination of transmission due to transientfailure, output is started with the actual output value of PIO

immediately before recovery.

Restart for Process I/O area

Restart for Process I/O area is a start operation in which output

operation is started after the output value immediately before is

recovered. Restart is executed at recovery from momentary powerfailure.

The following describes the output operation of restart operation for

process I/O area.

Begin output after restoring the output value to the saved outputvalue immediately before the power failure.

Even though output data in the output module is erased by a powerfailure, the RIO bus interface card (RB301) independently restores

the last output value.

High Speed Read Data

Select Yes or No for high-speed read data of I/O units. The default is

No. This item is set with each I/O module defined.

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5.4.3 Configuration

5.4.3.1 Identifiers of Process Inputs/Outputs

Process inputs/outputs are identified with element numbers. The structure of

element numbers is shown below.

%Znnuscc

where:

%Z: Process input/output identifier (fixed as %Z)

nn: Always 01 for a CENTUM CS 1000s PFCS and CENTUM CS3000s SFCS;

or node number (01 to 08) for a CENTUM CS 3000s LFCS

u: Unit number (1 to 5)

s: Slot number (1 to 4)

cc: Terminal number (01 to 64)

In factory plant operation, for monitoring purposes you may be required to assign a

tag name for each point of process input/output signals. In this case, a tag name or a

user defined label can be assigned to each point.

Process inputs/outputs can be accessed from a SEBOL program or general software

for Windows such as Visual Basic programs by specifying their element numbers,tag names, or user-defined labels.

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5.4.3.2 Process Inputs/Outputs Definition

Parameters of process inputs/outputs are shown below for each IOM category.

Table 5.1 Parameters for Each IOM Category

*1: CENTUM CS 3000 LFCS only.

For more details each of these items seeIM 33S1B30-01E, Section B3.3

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5.4.3.3 Access

To configure IOM definition, double click on the IOM in the System View. This

provides a display with basic I/O definition. Not all items shown in the above table

are displayed. They are broken into three categories:

1.Basic I/O Definition (eg, Signal Details, Signal Conversion, ServiceComment)

2.Detailed I/O Definition (eg, Range, Units, Tagname, etc)3.Set Detail (eg, Burnout Details, Input Open detection, etc)

To access detailed definition items, select [Detailed Setting Items] from the VIEW

menu.

For analog I/O, to access specific card details, select [SET DETAILS] from the

TOOLS menu.

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5.5 Process I/O Definition - KFCS

The physical specification and installation of process I/O was described in section 1, System

Overview. This section described the process of defining I/O in software through System

View.

5.5.1 Procedure

First, a NODE must be created. This is a subfolder within the IOM folder. The total number

of Nodes that can be created for one FCS is 10. Once these are created, I/O cards can be

placed within them

To create a new NODE:

1. Open an FCS folder2. Click on the IOM folder3. Either Select [Create New] from the File menu

Or Click on the IOM folder with the right mouse button and select [Create New]

4. Select [NODE]5. Select the node number, select LOCAL or REMOTE (see note) and click on [OK]

Note that before a Remote Node can be created, a Local Node must be created with an ER bus

card in it. Then, when Remote Node is selected, select from the list of configured ER cards to

connect this node to.

To create an IOM:

1. Click on the required NODE.2. Select [Create New], [IOM]3. A dialog box appears where the nest and card type are selected. See Section 1 for

details of the cards available.

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5.5.2 Configuration

5.5.2.1 Identifiers of Process Inputs/Outputs

Process inputs/outputs are identified with element numbers. The structure of

element numbers is shown below.

%Znns1cc

where:

%Z: Process input/output identifier (fixed as %Z)

nn: Node number (01 to 10)

s: Slot number (1 to 8)

1: always 1

cc: Terminal number (01 to 64)

In factory plant operation, for monitoring purposes you may be required to assign a

tag name for each point of process input/output signals. In this case, a tag name or a

user defined label can be assigned to each point.

Process inputs/outputs can be accessed from a SEBOL program or general software

for Windows such as Visual Basic programs by specifying their element numbers,

tag names, or user-defined labels.

5.5.2.2 Access

To configure IOM definition, double click on the IOM in the System View. This

provides a display with basic I/O definition. Not all items are displayed. They are

broken into three categories:

1. Basic I/O Definition (eg, Signal Details, Signal Conversion, ServiceComment)

2. Detailed I/O Definition (eg, Range, Units, Tagname, etc)

3. Set Detail (eg, Burnout Details, Input Open detection, etc)

To access detailed definition items, select [Detailed Setting Items] from the

VIEW menu.

For Analog I/O, to access specific card details, select [SET DETAILS] from the

TOOLS menu.

For Digital I/O, to access specific card details, click on the card with the right

mouse button, select PROPERTIES and SET DETAILS.

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5.6 Process I/O Definition - Common

5.6.1 Detailed Definition for Analog I/O

Description of each parameter to be set for IOMs classified as control inputs/outputs is given

below:

Items Defined in the IOM Definition Builder Window

Signal details

Signal conversion

Service comment

Range

Unit of range Details setting

Dual Redundant

P&ID tag name

User-defined label

Items Defined through TOOLS SET DETAILS in the IOM Definition Builder Window

Input open detection (IOPE)

IOP Detection Level (SIOP)

High-limit detection level (HIIOP) Low-limit detection level (LOIOP)

Output open detection (OOPE)

Fallback (FBEN)

Fallback output value (FBOUT)

Total resistance (RESIST)

Input filter (PLFL)

Transmitter power supply (VTTSEL)

Square root extraction (SQRT)

SQRT low input cut value (LCUT)

Reference Junction Compensation (RJCD) OOP output clearance specification (OPCLS)

OOP output clearance time (TOPCLS)

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5.6.1.1 Detailed Definition Items

Signal Details - Control I/O

This item is used to specify the IOM type. This item is defined in the IOM definitionbuilder. The following IOM types can be selected:

Current input (AAM11)

Voltage input (AAM11)

Current input/Single function (AAM10)

Voltage input/Single function (AAM10)

mV input (AAM21)

Thermocouple input (AAM21)

Resistance temperature detector input (AAM21)

Potentiometer input (AAM21) Pulse input (APM11)

Current output (AAM51)

Voltage output (AAM51)

Current output/Single function (AAM50)

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Signal Conversion - Control I/O

This item is defined in the IOM definition builder. The selection list varies with the IOM

type. The selection list and default value for each IOM type are shown in the table below:

Table 5.2 - Selection Lists and Default Values for Signal Conversion

Service Comment - Control I/O

These items are defined in the IOM definition builder. A character string consisting of up

to 40 characters can be entered.

The service comment setting is optional and can be left blank.

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Range - Control I/O

The high-limit and low-limit of the terminal measurement range are defined in the IOM

definition builder.

Values which can be selected as the high-limit and low-limit vary with the IOM type andsignal conversion type. Most are fixed. Those that can be changed are given in the table

below:

Low Limit High LimitIOM Type Signal Conversion Units

SelectionRange

Default SelectionRange

Default

Voltage input (AAM11) No conversion V 0 to 10 1 0 to 10 5

mV input (AAM21) No conversion mV -50 to 150 -50 -50 to 150 150

Potentiometer input (AAM21) No conversion Ohm 100 to 30000 100 0 to 30000 2000

Unit of Range - Control I/O

The unit of measurement range is defined in the IOM definition builder. Selectable units

of measurement range vary with the IOM type, although all except thermocouple inputs

are fixed and cannot be changed.

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Details Setting - Control I/O

The IOM details are defined in the IOM definition builder. Selectable items vary with the

IOM type. The selection list and default value for each IOM type are shown in the table

below.

Table 5.3 - Selection Lists and Default Values for IOM Details Setting

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Dual Redundant - Control I/O

The dual redundant can be specified Enable/Disable in the IOM definition builder. The

dual redundant can be designated to the current output module AAM51 or AAM50, only

for the odd numbered IOM. The IOM is called duplex source.

If the Dual redundant is defined as Enable to the IOM, the signal of the duplex source

will be copied to its corresponding duplex destination. Once the signal is copied,

definition change on the duplex destination IOM become impossible.

The table below shows the relationship between terminal numbers of duplex source IOMs

and destination IOMs.

Table 5.4 - Dual Redundant Definition

Duplex source 1 3 5 7 9 11 13 15

Duplex destination 2 4 6 8 10 12 14 16

If the entries in the fields (e.g., Maximum Range, Dual Redundant) except for the

Signal Details field for a duplex source IOM are changed, the changes will also

reflect on the corresponding duplex destination IOM. If the dual redundant for a

duplex source IOM is set to Disabled, setting of the corresponding duplex

destination IOM will be possible. If the entry in the Signal Details field for a duplex

source IOM is changed or duplex source IOM itself is deleted, the record for the

corresponding duplex destination IOM will be deleted too.

P&ID Tag Name - Control I/O

A P&ID tag name of up to sixteen characters can be specified in the IOM definition

builder. The setting is optional, and blank as the default.

User-defined Label - Control I/O

A user-defined label of up to 16 characters (as the name of the function blocks

input/output terminal) can be specified in the IOM definition builder. The setting is

optional, and blank as the default.

The entry format of user-defined labels is as follows:%%MnnnnnnnnnnnnnWhere%%: Always %%M: One uppercase letternnnnnnnnnnnnn: Up to 13 alphanumeric characters

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5.6.1.2 Set Detail Items

Detect Input Open (IOPE) - Control I/O

The detection for wire breakage (input open) of the input signal can be defined in the IOMdefinition builder. The default is Enabled.

This applies to all analog inputs except pulse inputs.

IOP Detection Level (SIOP) - Control I/O

The IOP detection level can be specified in the IOM definition builder. The

default setting is Disabled.

High-Limit Detection Level (HIIOP) - Control I/O

The IOP high-limit detection level can be defined in the IOM definition builder.

The level can be defined within a range of -25.0 to 125.0 (max. 5 digits, in %). If

the high-limit is defined lower than the low-limit (LIOP), an error will occur. The

default is +106.3. HIIOP can be defined only when Enabled is set for SIOP.

Low-Limit Detection Level (LOIOP) - Control I/O

The IOP low-limit detection level is defined in the IOM definition builder. The

level can be defined within a range of -25.0 to 125.0 (max. 5 digits, in %). If the

lower-limit is defined higher than the high-limit (HIOP), an error will occur. The

default is -6.3. LOIOP can be set only when Enabled is set for SIOP.

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Output Open Detection (OOPE) - Control I/O

The detection for wire breakage (output open) of the output signal can be defined in the

IOM definition builder. The default is Enabled.

This is available for current outputs only (not voltage).

Set Fallback (FBEN) - Control I/O

On the IOM definition builder, fallback may be set. The default setting is no fallback.

When check the Set Fallback item, then it is required to check the option button for

either Maintain Current Value or Output data. The default option is Maintain

Current Value.

When not check the Set Fallback item, the current value will be held when theprocessor unit or the interface of the processor unit fails. However, the occurrence of

the abnormality will not be notified even when the failed processor unit or the

interface of the processor unit returns to normal state.

This is available for both current and voltage outputs.

Fallback Output Value (FBOUT) - Control I/O

The output data value (FBOUT) for fallback may be defined on IOM definition

builder. Up to 5 digits may be used for FBOUT, the range for current output is

-17.2 to 112.5 while the range for voltage output is -25.0 to 225.0 (unit: %).

There is no default setting. The output data value (FBOUT) may be defined

only when the "Set Fallback" item is checked.

All Resistance Value (RESIST) - Control I/O

The total resistance of potentiometers may be defined on the IOM definition builder. All

resistor values (RESIST) may be defined in up to 7 digits number in the range of 0 to

3000 (unit: ohm). When value is not defined, the high limit of the total resistance value

will be used. There is no default setting. This is available for potentiometer inputs only.

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Pulse Input Filter (PLFL) - Control I/O

The pulse input filter function can be defined in the IOM definition builder. The default is

Disabled. This is available for pulse inputs only.

Transmitter Power Supply (VTTSEL) - Control I/O

The voltage of the pulse input transmitter power supply (APM11) can be defined

in the IOM definition builder. The voltage is defined to either 12 or 24 (V). The

default is 24.

Square Root Extraction (SQRT) - Control I/O

The square root extraction can be defined in the IOM definition builder. The default is

Disabled. Available for AAM11 module only.

SQRT Low Input Cut Value (LCUT) - Control I/O

The low input cut value for square root extraction can be defined in the IOM

definition builder. When the input signal is below the low input cut value, the

square root extraction will not be performed, the output equals to the input value.

The default is 0.6 (%). LCUT can be defined only when SQRT is selected

Enabled.

Reference Junction Compensation (RJCD) - Control I/O

The reference junction compensation can be defined in the IOM definition builder. Thedefault is Enabled for signal conversion other than thermocoupler type B, and is

Disabled for thermocoupler type B. Available for thermocouple inputs only.

OOP Output Clearance Specification (OPCLS) - Control I/O

OOP output clear may be specified so that to make the output into tight-shut state

automatically when a certain time period elapsed after OOP occurs. The item OOP

Output Clear may be checked on IOM definition builder. The default setting is that the

item OOP Output Clear is not checked. Available for current outputs only.

OOP Output Clearance Time (TOPCLS) - Control I/O

OOP output clear time is the time limit to make the output into tight-shut state

automatically after OOP occurred. OOP output clear time may be set on the IOM

definition builder. OOP output clear time may be defined in an up to 4 digits value in the

range of 0 to 25.5 (unit: seconds). The default setting is 4 seconds.

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5.6.2 Parameters for Relay & Contact Inputs/Outputs

Description of each parameter to be set for IOMs classified as relay inputs/outputs,

contact terminals or contact connectors are given below.

Items Defined in the IOM Definition Builder Window

Point mode

P&ID tag name

Tag name

Tag comment

Switch position label

Label direction

Label colors

Security level Tag mark

Upper window

Help window

Items Defined through SET DETAILS in the PROPERTIES dialog box

Filter time

Detection edge

Dual redundant

Fallback

Items Defined through the TOOLS SET DETAILS in the IOM builder

Time-proportional ON/OFF pulse period

Operation start offset

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5.6.2.1 Detailed Items

Point Mode

The point mode of each terminal of a module can be specified in the IOM definitionbuilder. The available selections for the point mode and the default setting vary according

to the input/output type as shown in the table below.

Table Point Mode Setting:

Point modeInput/output type

Selection list Default setting

Status output SO, PO SO

Pulse-width output PW (fixed) PW

Time-proportional on/off output TP TP

A time-proportional on/off output can be specified for an odd-numbered terminal of amodule. When user set the point mode for a time-proportional on/off output, the point

mode of the next terminal number (even-numbered) is automatically set to the same.

P&ID Tag Name

A P&ID tag name of up to 16 characters can be specified in the IOM definition builder.

The setting is optional, and blank as the default.

Tag Name

A tag name of up to 16 alphanumeric characters can be specified in the IOM definitionbuilder. The setting is optional, and blank as the default.

Tag Comment

A tag comment may be defined on the IOM definition builder. The setting is optional, and

blank as the default is blank. Up to 24 alphanumeric characters (12 double-byte

characters) may be defined as tag comment.

Switch Position Label

The switch position label can be specified in the IOM definition builder. Set ON or

OFF for each of labels 1 to 4 in the following format:

,,,

Use a comma as a separator. The default setting is as follows: ON,,OFF,ON

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Label Direction

The direction in which the switch position label should be displayed, can be specified in

the IOM definition builder. Set Direct or Reverse. The default is Direct.

Label Colors

The label colors can be specified in the IOM definition builder. The default setting for

each label is R (red).

Security Level

The security level of the module data can be defined in the IOM definition builder. Select

the level from 1 to 8. The default is level 4.

Tag Mark

The tag mark type is specified in the IOM definition builder. The following are the

available selections. The default setting is Ordinary tag w/o acknowledgment.

Important tag mark without acknowledgment

General tag mark without acknowledgment

Auxiliary tag mark 1 without acknowledgment

Auxiliary tag mark 2 without acknowledgment

Important tag mark with acknowledgment

General tag mark with acknowledgment Auxiliary tag mark 1 with acknowledgment

Auxiliary tag mark 2 with acknowledgment

Upper Window

The name of the window to be called up as the window upper in the hierarchy is specified

in the IOM definition builder. The window name must be 16 uppercase alphanumeric

characters. This setting is optional.

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Help Window

The name of the Help window defined by the user must be specified in the IOM definition

builder. The setting is optional. The help message may be identified by assigning the help

window a unique ID. The entry format of the Help window name is as follows:

HWnnnnWhere

HW: Always HWnnnn: Help ID of four-digit number

5.6.2.2 Detail Set Items Properties Sheet

Filter Time Status Input

Chattering will occur as shown below during contact input.

Figure Contact Input Chattering

Chattering may cause a malfunction of the system. To prevent malfunction, a filter

time must be defined. The filter time is set on the property sheet for the Input/Output

Module. In the system view, select the filter time from 0, 20, 40, 60 or 100

(ms). The default is 0.

Detection Edge - Pushbutton Input

Whether to detect a change from OFF to ON or from ON to OFF for a pushbutton input, is

set on the property sheet for the Input/Output Module. The detection edge can be selectedfrom the following choices. The default setting is OFF.

ON: Detection of OFF to ON edge

OFF: Detection of ON to OFF edge

BOTH: Detection of both OFF to ON and ON to OFF edges

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Fallback Status Output

The fallback function is set on the property sheet for the Input/Output Module. The

fallback function outputs the preset fallback value when error occurs in the processor unit.

When the fallback function is enabled, the fallback type must be selected from the

following choices.

All points maintain the current valuesWhen a fallback condition is detected, all the contacts hold their previous

ON or OFF status.

All points OFFTurn OFF all the contacts.

Dual Redundant

The dual redundant function with the adjacent IOM can be defined in the IOM property

sheet. The default is Not checked.

5.6.2.3 Detail Set Items Tools Menu

Time-proportional ON/OFF Pulse Period

When using the Time-proportional ON/OFF Output Module of the LFCS, set a Time-

proportional ON/OFF Pulse Period between 0 and 300 (seconds) on the IOM Definition

Builder. The default is 10 seconds.

Operation Start Offset

When using the Time-proportional ON/OFF Output Module of the LFCS, set an

Operation Start Offset between 0 and 300 (seconds) on the IOM Definition Builder. The

Operation Start Offset is time setting to define the phase of ON/OFF period for each

output when using multiple time-proportional ON/OFF outputs in the same module. The

default is 0 second.

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5.7 PLC Communications

The subsystem communication package is used to perform communication between the FCS

and PLC using communication I/O.

Subsystem communication packages are available for following models:

FA-M3communication package (for use with Yokogawa Electrics FA-M3)

DARWINcommunication package (for use with Yokogawa Electrics DARWINseries data acquisition unit DA100, hybrid recorder DR230, DR231, DR241 and

DR242)

Gas chromatographycommunication package (for use with Yokogawa ElectricsGC1000/FC6/GC8)

MELSEC-Acommunication package (for use with Mitsubishi Electrics generaluse PC, MELSEC-A)

Modbuscommunication package (for use with AEG Schneiders Modicon, andYaskawa Electrics Memocon-SC)

A-Bcommunication package (for use with Allen Bradleys PLC-5 family)

SYSMACcommunication package (for use with Omrons SYSMAC C series)

Siemens communication package (for use with Siemens SIEMENS PLSSIMATIC S5)

The following communication modules are used to connect the CS 1000/CS 3000 with the

subsystem.

ALR111: RS232 communication card (KFCS)

ALR121: RS422/485 communication card (KFCS)

ALE111: Ethernet communications card (KFCS)

ACM11: RS-232C communication module (LFCS)

ACM12: RS-422/RS-485 communication module (LFCS)

ACM21: RS-232C communication card (LFCS) (*1) (*2)

ACM22: RS-422/RS-485 communication card (LFCS) (*1) (*2)

*1: ACM21/ACM22 communication cards may be used in PFCS.

*2: ACM21/ACM22 communication cards may be used in SFCS.

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5.7.1 Subsystem Data Identification

In subsystem communication, subsystem data are identified by the element numbers. This

section explains the identification method of the analog data and contact I/O data that are

assigned to the regulatory control block, sequence control block and other blocks.

Element Numbers for Data Handled by Subsystem

Data handled by subsystem are identified by their element numbers. There are the

following two types of element numbers.

Table Element Numbers for Subsystem Data

Access method Element number Explanation

Word data %WWnnnn nnnn is a number within the area. The head is 0001.Bit data %WBnnnnbb nnnn is a number within the area. The head is 0001. bb is

a bit number (1 to 16) within the word. The most

significant bit is 1.

The same data may be accessed both in word units and bit units. For example, each bit

in the 16-bit data %WW0020 can be accessed respectively as %WB002001 to

%WB002016.

Figure Identifying Data in Word Units and Bit Units

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The following figure illustrates an example of connecting with word data.

Figure Subsystem Data (Word Data) Link Example

Data Items Handled by a Subsystem

Table Data Items for Subsystem Data

Identifier Data item Description

%WWnnnn PV Word data access. The data format depends on thedefinition in the communication definition

PV Bit data access. On/Off of the specified bit is returned as 1or 0.

PV16 A 16-bit data starting with LSB (the Least Significant Bit)first is returned.

%WBnnnnbb

OPMK Information for the operation mark assigned to the relevantbit is returned.

When the data identified by %WB is accessed by PV16, 16 bits are stored starting with the bit

specified by %WBnnnnbb as the most significant bit, towards the least significant bit (when

the word boundary is reached, advances to the next word).

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5.7.2 Communication Specifications - Modbus

5.7.2.1 Communication Capacity - Modbus

The capacity specific to Modbus when performing subsystem communication with a

Modbus PLC is indicated below:

Table Capacity of Communications Between FCS and Modbus PLC

Item Maximum quantity Explanation of words

Amount of data that can becommunicated with one

communication module

1000 words (KFCS)500 words (LFCS)

(1 word=16 bits)

Restricted by the maximum amount maybe accessed from the regulatory control

block/sequence control block.

Number of subsystem stations

that can be communicated with

one communication module

30 stations

Applies to RS422/485 communications.

RS232 is point-to-point communications

only.

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5.7.2.2 Transmission Specifications - Modbus

The transmission specifications when performing subsystem communication with the

Modbus PLC are indicated below:

Table Transmission Specifications - Modbus

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5.7.3 Setting Items from System View - Modbus

This section explains the setting items pertaining to the Modbus PLC. The following items

can be set using the Detail setting tab strip of the New IOM dialog box called from the system

view:

Connected equipment

Transmission speed

Parity

Data bit

Stop bit

RS control

DR check

CD check

Communication error handling Options

Connected Equipment - Modbus

This sets the type of the equipment (subsystem) connected. This setting is done using

the Detail setting tab strip of the New IOM dialog box called from the system view.

When using Modbus PC, select MODBUS as the connected equipment. Always

perform this setting since the default is FA-M3.

Transmission Speed - Modbus

This sets the transmission speed between the communication module and Modbus PC.

This setting is done using the Detail setting tab strip of the New IOM dialog box

called from the system view. The transmission speed can be selected from the

following options:

1200

2400

4800

9600

19200

The default setting is 19200. The recommended value for the transmission speed is

19200.

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Parity - Modbus

This sets the method for checking the parity of the subsystem data to be transmitted.


called from the system view. The parity can be selected from the following options:

Odd parity

Even parity

No parity

The default is even parity. The recommended setting for the parity is even parity.

When the transmission speed is set to 19200, the no parity choice cannot be set.

Data bit - Modbus

This sets the data bit length of the subsystem data to be transmitted. This setting is

done using the Detail setting tab strip of the New IOM dialog box called from the

system view. When using a Modbus PC, select 8 bits for the data bit length. The

default is 8 bits.

CAUTION

For the Modbus PLC, always select 8 bits for the data bit length. A

communication error will occur if 7 bits is selected.

Stop Bit - Modbus

This sets the stop bit of the subsystem data to be transmitted. This setting is done

using the Detail setting tab strip of the New IOM dialog box called from the system

view. When using the Modbus PLC, select 1 bit for the stop bit.

The default is 1 bit.

2 bits cannot be used as the stop bit.

RS Control - Modbus

This sets whether or not RS control is performed during subsystem data transmission.

This setting is done using the Detail setting tab strip of the New IOM dialog boxcalled from the system view. For Modbus PLC, do not place a mark in the RS

control check box to enable RS control.

The default is no mark in the RS control check box.

DR Check - Modbus

This sets whether or not DR check is performed during subsystem data transmission.


called from the system view. For Modbus PLC, it is required to enable the DR check

function by marking the DR check check box.

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The default is that the DR check check box is marked.

CD Check - Modbus

This sets whether or not CD check is performed during subsystem data transmission.

This setting is done using the Detail setting tab strip of the New IOM dialog boxcalled from the system view. For Modbus PLC, do not place a mark in the CD

check check box to enable the CD check.

The default is no mark in the CD check check box.

Communication Error Handling - Modbus

This sets the parameters related to communication error handling during subsystem

data transmission. This setting is done using the Detail setting tab strip of the New

IOM dialog box called from the system view. The setting items include the following

three:

No response detection time - This sets the time for detecting no response inthe Modbus PLC. The setting unit is seconds.

The setting range is 0 to 99.

The default is 4.

Number of communication retries - This sets the number of retries when acommunication error occurs.


The default is 1.

Time interval for recovery communication - This sets the time interval forFCS to send a communication request packet to the station that acommunication error occurred. The setting unit is seconds.


The default is 30.

The recommended settings for communication error handling are the default setpoint

values.

Options - Modbus

Settings of communication parameter options vary depending on the equipmentconnected. Set options by clicking the [Option] button in the Detail setting tab strip of

the New IOM dialog box called from the system view. In the case of Modbus PLC,

define a method of recovery communication at the Option 1, and 0 at the Options 2

to 4.

The default is no setting.

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5.7.4 Setting Items in the Communication I/O Definition Builder - Modbus

This section explains the items set via the communication I/O definition builder with respect

to the Modbus PLC. The following items are set via the communication I/O definition

builder.

Element number

Program name

Buffer size

Station number

Device & Address

Data size

Data type

Reverse Bits

Service comment User-definable label name

Element Number - Modbus

With respect to the address of the subsystem data buffer, the element number is indicated in

the communication I/O definition builder as shown below. The element number is not for set,

only for display.

%WWnnnn

%WW: Fixednnnn: For PFCS standard type: 1 to 1000 (*1)For PFCS expansion type: 1 to 4000 (*1)For LFCS or KFCS: 1 to 4000 (*2)

*1: Setting range on CS 1000.


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Buffer Size - Modbus

This sets the size of the buffer for the communicated data. This setting is done via the

communication I/O definition builder. The range of the size that can be set is indicated

below. The setting is done in word units.

For PFCS standard type: 1 to 1000 (*1)

For PFCS expansion type: 1 to 4000 (*1)

For LFCS or KFCS: 1 to 4000 (*2)



There is no default setting.

Items for consideration when setting the buffer size are shown below:

Always set the buffer size since this is a required setting item of thecommunication I/ O definition builder. Other setting items cannot be set unless

the buffer size is set.

When an odd number is used to define the size, the buffer is reserved for thesize of the next even register by adding 1.

In the case of PFCS, make sure that the total buffer size setting does notexceed 1,000 for the standard type and 4,000 for the expansion type (*1). If the

size set exceeds these values, it will automatically be cut off to fit the range.

In the case of SFCS/LFCS, make sure that the total buffer size setting does notexceed 4,000. If the setting exceeds 4,000 (*2), it will be automatically

adjusted to a value within the allowable range.

If the buffer size is set so that it becomes smaller than the data size setting, anerror will result and it will automatically be adjusted to fit the data size.

After properly setting the buffer size and moving to the setting in the next line,an *(asterisk) is displayed in the sections for the program name of the

reserved area and buffer size. No setting is required for the sections marked

with asterisks.

*1: Setting range on CS 1000.*2: Setting range on CS 3000.

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Program Name - Modbus : PFCS/SFCS

The program name is displayed in the communication I/O definition builder as unit

number, slot number and the connected equipment name defined when the IOM was

created. Set this name as the program name.

u-s program name

u: Unit number

s: Slot number

program name: Connected equipment name defined when the IOM was

created

Program Name - Modbus : LFCS

When setting the name of the program for accessing the subsystem, entering the unit

number and slot number then the connection device name input when the I/O module

was created may be displayed on the communication I/O definition builder. This name

is the same as the program name.

n-u-s ProgramName

n: Node number

u: Unit number

s: Slot number

ProgramName: The device name for connection input when the

I/O module was created.

Program Name - Modbus : KFCS

When setting the name of the program for accessing the subsystem, entering the unit

number and slot number then the connection device name input when the I/O module

was created may be displayed on the communication I/O definition builder. This nameis the same as the program name.

K1-n-s ProgramName

n: Node number

s: Slot number

ProgramName: The device name for connection input when the

I/O module was created.

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Data Size - Modbus

This sets the data size (data length) from the head address set in the Device &

Address. This setting is done via the communication I/O definition builder. The size

can be set as below in word units:

For analog input and analog output: 1 to 125 words

For contact input and contact output: 1 to 8 words

There is no default setting.

Items for consideration when setting the data size are shown below:

Up to 30 data settings are possible for each buffer.

Always set the data size since this is a required setting item for thecommunication I/O definition builder. Other setting items cannot be set

unless the data size is set.

When an odd number is used to define the size, the buffer area is reservedfor the size of the next even register by adding 1.

If the set buffer size exceeds the buffer size, it will automatically beadjusted to fit the data.

After properly setting the data size and moving to the setting in the nextline, an * (asterisk) is displayed in the sections for the size that has been

reserved, station number, device & address, data type and bit reversal.

Settings cannot be done for the sections marked with an asterisk.

The following shows the buffer size and corresponding data size.

Figure Buffer Size and Data size - Modbus

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Port Number (KFCS)

Specify the port number on the ALF card through which this packet of data is

communicating. This is a value of 1 or 2.

Station Number and IP Address - Modbus

This sets the station number of the Modbus PLC. This setting is done via the

communication I/O definition builder.

If the communications is serial, then set a number between 1 and 255 in the Station

Number Field.

If the communications is ethernet, then set the PLC IP address in the IP Addressfield.

Device & Address -Modbus

The head address of Modbus PLC data is set via the communication I/O definition

builder. The addresses can be set using 3 to 7 alphanumeric characters in the formats

given below:


Coil: A0xxxx, B0xxxx, X0xxxx, Y0xxxx

Input relay: A1xxxx

Link relay: ADxxxx, BDxxxx, XDxxxx, YDxxxx

Step status: ASxxxx Input register: A3xxxx

Holding register: A4xxxx, B4xxxx, C4xxxx, X4xxxx, Y4xxxx, Z4xxxx

Constant register: ACxxxx, BCxxxx, CCxxxx, XCxxxx, YCxxxx, ZCxxxx

Step elapsed time: A5xxxx

Link register: ARxxxx, BRxxxx, CRxxxx, XRxxxx, YRxxxx, ZRxxxx

Extended register: AAxxxx, BAxxxx, CAxxxx, XAxxxx, YAxxxx,ZAxxxx

4 byte register: AWxxxx

Special coil: SP001

Communication status:STSxxx

xxxx is the address within the Modbus PLC device. The range is 1 to 65535

(1H to FFFFH) and is set as a decimal or hexadecimal number. If it is set with

a hexadecimal number, add H at the end. Also, with respect to the xxxx

portion, the 0 prefixed at the head can be omitted. For example, A023, A0023

and A00023 are all the same address for the coil.

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Data Type - Modbus

This sets data type of the subsystem data. This setting is done via the communication

I/O definition builder. The data type can be selected from the following:

Analog input (16-bit signed integer data. I16) Analog input (16-bit unsigned integer data. U16)

Analog input (32-bit signed integer data. I32)

Analog input (32-bit unsigned integer data. U32)

Analog input (32-bit floating point data. F32)

Analog input (64-bit floating point data. F64)

Analog output (16-bit signed integer data. I16)

Analog output (16-bit unsigned integer data. U16)

Analog output (32-bit signed integer data. I32)

Analog output (32-bit unsigned integer data. U32)

Analog output (32-bit floating point data. F32) Analog output (64-bit floating point data. F64)

Contact input (DI)

Contact output (DO)


Reverse Bits - Modbus

This sets whether or not to make the bit arrangement in FCS in reverse order of the

subsystem data. This setting is done via the communication I/O definition builder.

Service Comment - Modbus

A comment can be set. This setting is done via the communication I/O definition

builder. Service comment setting can be omitted. A character string of up to 40

single-byte or 20 double-byte characters can be set as the service comment.

User-Defined Label Name - Modbus

The name of the function block I/O terminal can be set as a user-defined label name.

This setting is done via the communication I/O definition builder. The user-defined

label name is an optional setup item. The user-defined label name can only be setwhen the [optional setup items] on the [display] menu bar is selected. The user-

defined label name setting can be omitted. A character string of up to 16 single-byte

characters in the following format can be set as the user-defined label name.

%%[A-Z] [A-Z0-9]

%%: Fixed

A-Z: The third character must be an uppercase character

A-Z0-9: From the fourth letter on are alphanumeric characters

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5.7.5 Bit Configuration

Many Words that are read/written between the FCS and the PLC contain digital I/O.

Up to 1000 of these can be assigned tag names.

To configure the Tag definition for these bits:

Select TOOLSCall %WB Tag Number Definition

The Tag definition table appears. The tag configuration is very similar to Switch and

Digital I/O configuration, except that the Element number needs to be defined.

The element number is created as follows:

%WBxxxxyy

Where - xxxx is the %WW number between 0000 and 1000

- yy is the bit number within that word between 01 and 16

S5 FCS Functions

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Transcript of S5 FCS Functions