DISTRIBUTED PROCESSING UNIT, DPU4F – FEATURES

• DPU IS THE HARDWARE PROCESSNG ENGINE OF THE maxDNA DCS.

• MOUNTED IN A SINGLE SLOT OF THE 8 PAC RACK.– MUST BE MOUNTED IN THE LEFT MOST POSITION OF THE

maxPAC RACK TO ALLOW FOR BEST AIRFLOW. WHEN USING A SECOND DPU , IT MUST BE MOUNTED VERTICALLY BENEATH THE PRIMARY TO ALLOW FOR CONNECTION OF THE BACKUP CABLE

• OPERATES IN CONJUNCTION WITH THE I/O MODULES.- EACH DPU/DPU PAIR CAN CONTROL UPTO MAXIMUM OF 60

I/O MODULES & ALLOWS A I/O BUS LENGTH OF 30 FEET. - BUS LENGTH CAN BE EXTENDED TO 2000m WITH BEM

MODULES &ADDITIONAL MODULES CAN BE SUPPORTED.• PROVIDES CONNECTIVITY TO MAXNET THRO’DUAL

ETHERNET PORTS & RESIDES AS A STATION ON THE MAXNET ALONG WITH THE I/O MODULES.– ON THE MAXNET EACH DPU/DPU PAIR IS IDENTIFIED WITH

A UNIQUE ETHERNET IP ADDRESS.

- OPTIONALLY CONTAINS AN IRIG-B INTERFACE.- DPU CAN SYNCHRONIZE TO SATELLITE TIME THROUGH

IRIG-B INTERFACE. INTERFACE IS AVAILABLE ON THE FRONT PANEL THRO’ A BNC CONNECTOR. TIMING CAN BE TRANSMITTED TO ALL STATIONS ON THE maxNET.

- OPTIONALLY CONTAINS A RS232 PORT ON THE FRONT PANEL FOR INTERFACING TO EXTERNAL PLCS.

DISTRIBUTED PROCESSING UNIT , DPU4F – FEATURES

DISTRIBUTED PROCESSING UNIT FUNCTIONS.

• EXECUTION OF CONTROL ALGORITHMS (CONFIGURATION/DATABASE) FOR PROCESS CONTROL & DATA ACQUISITION.- UPTO 8500 FUNCTION BLOCKS CAN BE EXECUTED IN THREE

DIFFERENT TIME CLASSES. (10ms to 1/2s)

• CONTINUOUS SCANNING OF I/O MODULES.

• LOGGING OF SOE AT 1 ms RESOLUTION.

• ACQUISITION OF TREND INFORMATION.

• CALCULATIONS & ALARMING.

• SCANS AND PROCESSES INFORMATION FOR USE BY OTHER DEVICES IN THE maxDNA SYSTEM.

DPU4F CONNECTIVITY OVER maxNET

I/O

SIGNALS

DPU

IO

IO

IO

IO

IO

IO

IO

IO

IO

IO

DPU

DPU

Switch A

Switch B

DPU 4F -- SPECIFICATIONS

NET A CON’TR

NET BCON’TR

BACK UP CON’TR

ETHERNETCONTROLLER

ETHERNETCONTROLLER

ETHERNETCONTROLLER

COMPACTFLASH

PCI INTERFACE CHIP

CONTROLPROCESSOR (CP)

IRIG/ RS232FRONTEND(OPTIONAL)

SDRAM

BIOSFLASH

SHARED MEM FPGA

SHARED RAM

IOMPROCESSOR

(IOM)

IOM FPGA

ON BOARDREGULATORS

5V/3.3V/2.1V 24V IN

I/O BUS

MEMORY BUS

PCI BUS

DPU 4F BLOCK DIAGRAM

IDE BUS I/O B

AC

KP

LA

NE

WIN CE.NET RTOS

DPU4F- HARDWARE FEATURES

- CONTROL PROCESSOR (CP) AMD GEODE -300MHZ ALL CONTROL ACTIONS ARE ACHIEVED BY EXECUTIING

PROGRAMS FROM THE 128MB SDRAM .- IOM PROCESSOR (IOM) –

MOTOROLA 68332 MICROCONTROLLER. RESPONSIBLE FOR SCANNING ALL THE I/O MODULES

CONNECTED TO THE DPU. THIS FUNCTION IS ACHIEVED BY MEANS OF THE IOM FPGA.

- SHARED MEMORY FACILITATES SHARING OF DATA BETWEEN THE CP & IOM.

THIS DATA SHARING IS CONTROLLED BY THE SHARED MEMORY FPGA.

- COMPACT FLASH (64MB/128MB ). THIS CARRIES: DPU SOFTWARE FILES. DPU INITIALISATION INFORMATION. CONTROL ALGORITHM WHICH IS DOWNLOADED BY USER USING DPUTOOLS UTILITY.

- NETWORK CONTROLLER ICs.

DPU SOFTWARE FILES IN THE COMPACT FLASH :

WIN CE .NET OS & BIOS.

IOM FIRMWARE .

FIRMWARE FOR SHARED MEMORY FPGA

FIRMWARE FOR IOM FPGA

IOM DIAGNOSTIC CODE .

THE DPU INITIALIZATION FILE.

DPU INITIALIZATION FILE IN THE COMPACT FLASH CONTAINS:

DPU NAME

IP ADDRESS

OTHER CONFIGURATION INFORMATION.

COMPACT FLASH IS NON-VOLATILE & CAN BE MOVED FROM ONE DPU TO ANOTHER.

ABOVE FILES CAN BE DOWNLOADED TO THE DPU USING THE ‘DPU4F SETUP‘ UTILITY . (FOR THIS DPU NEEDS TO BE

POWERED UP IN MODES ‘C’ OR ‘E’)

DPU4F- COMPACT FLASH MEMORY

DPU4F – MAIN FUNCTIONS –FUNTIONAL BLOCK DIAGRAM LEVEL

• EXECUTION OF CONTROL FUNCTION/ALGORITHM (THE CONTROL ALGORITHM IS COMMONLY REFERRED TO AS ‘DATABASE’ OR ‘CONFIGURATION’)

• SCANNING OF ALL I/O MODULES FOR FIELD DATA.

• INTERFACE TO THE maxSTATION THRO’ ETHERNET PORTS AND BACKUP DPU FUNCTIONS.

DPU4F – FRONT PANEL FEATURES

DPU4F – FRONT PANEL FEATURES -- MODE SWITCH

16 POSITION ROTARY SWITCH

DETERMINES THE OPERATIONAL

STATE OF THE DPU.

POSITION

OPERATIONAL STATE

0 ON LINE OPERATION / BUT LOCKED.

1OFF-LINE OPERATION . O/Ps ARE FROZEN AND WILL NOT CHANGE. THE STATE LED WILL BE RED.

2 - ARESERVED / DIAGNOSTICS -- NOT FOR CUSTOMER USE.

BIF THIS MODE IS SET DURING RE-BOOT OF DPU,THE DPU WILL CLEAR THE DATABASE FROM COMPACT FLASH & GO ONLINE AS IN MODE F

C

NETWORK FLASH MODE. USED FOR CONFIGURING THE DPU FOR THE FIRST TIME/CHANGE OF ADDRESS.DPU SOFTWARE CAN ALSO BE DOWNLOADED.

D FACTORY DEBUG MODE

ENETWORK FLASH MODE.USED FOR DOWNLOADING THE DPU SOFTWARE .

FNORMAL OPERATING MODE. WILL USE THE DATABASE STORED IN FLASH IF AVAILABLE.

DPU4F – FRONT PANEL FEATURES -- NETWORK I/F PORTS.

DUAL ETHERNET 10/100 BASE T PORTS

PROVIDES CONNECTIVITY TO THE MAXNET.

(NET A & NET B)

DPU4F – FRONT PANEL FEATURES -- NETWORK STATUS LEDs.

REPORT THE STATUS OF THE maxNET

A & B PORTS.

NETWORK IS OPERATIONAL

DPU HAS DETECTED A STATION WHICH DOES NOT

HEAR FROM IT

NETWORK FAILURE. DPU DOES NOT HEAR FROM

ANY STATION.

SOLID GREEN

SOLID YELLOW

BLINKING YELLOW

DPU4F – FRONT PANEL FEATURES -- BACKUP PORT & BACKUP LED.

BACKUP PORT

A 100 MBPS ETHERNET INTERFACE USED

TO PASS DATABASE INFORMATION TO A

HOT STAND BY DPU.

BACKUP LED.

INDICATES THE REDUNDANCY STATUS

OF THE DPUs CONFIGURED AS A BACKUP

PAIR.

BACKUP NETWORK IS OPERATIONAL

SOME BACKUP NETWORK ERRORS

COMMUNICATION IS NOT ESTABLISHED WITH

BACKUP DPU

SOLID GREEN

SOLID YELLOW

SOLID RED

DPU4F – FRONT PANEL FEATURES -- IOM STATUS LED.

INDICATES OPERATION STATE OF THE

IOM PROCESSOR.

OPERATIONAL IOM

NA

IOM STOPPED OR TIMED OUT.

RESET REQUIRED.

SOLID GREEN

SOLID YELLOW

SOLID RED

DPU4F – FRONT PANEL FEATURES -- I/O STATUS LED.

INDICATES THE STATUS OF THE I/O

BUS TRANSACTIONS.

ALL CONFIGURED I/O CARDS ARE WORKING

CORRECTLY

SOME CONFIGURED CARDS ARE WORKING

CORRECTLY. SOME ARE NOT.

NO CONFIGURED CARDS ARE WORKING CORRECTLY.

SOLID GREEN

SOLID YELLOW

SOLID RED

DPU4F – FRONT PANEL FEATURES -- CP STATUS LED.

REPORTS THE HEALTH OF THE CONTROL

PROCESSOR.

HEALTHY HEARTBEAT

SOLID GREEN CP FAILURE

SOLID YELLOW < 20 SEC LOADING OR SAVING

DATABASE;>20 SEC ---CP FAILURE

BLINK YELLOW GREEN

SOLID GREEN

SOLID YELLOW

DPU4F – FRONT PANEL FEATURES -- STATE LED.

REPORTS THE CURRENT CONTROL STATE

OF THE DPU.

DPU STATESTATE LED

ACTIVE DPU INACTIVE DPU

STANDALONE DPUs

BACKUP WARMING UP

BLINKS GREEN & RED BLINKS YELLOW & RED

BACKUP DPUs WITH BACKUP

AS HOT STANDBY

BACKUP DPUs WITH FAILED STANDBY

INDETERMINATE

OFFLINE

BOOTING

SOLID GREEN SOLID YELLOW

BLINKS GREEN & YELLOW

BLINKS YELLOW & BLANK

BLINKS GREEN & BLANK

RED RED

OFF THEN BLINKING RED

OFF THEN BLINKING

RED

DPU4F – FRONT PANEL FEATURES – RESET & TAKEOVER BUTTONS.

RESET BUTTON

PRESSING THIS BUTTON WILL CAUSE THE

DPU TO STOP CONTROLLING & GO THRO’

A RESET CYCLE.

TAKEOVER BUTTON

PRESSING THIS BUTTON WILL CAUSE A

PREVIOUSLY INACTIVE DPU TO GO ACTIVE.

SERIAL PORT(OPTIONAL)

OPTIONAL RS232 SERIAL PORT WITH RJ45

CONNECTOR FOR INTERFACING TO

EXTERNAL PLC TYPE DEVICES.

IRIG-B PORT(OPTIONAL)

BNC CONNECTOR WHICH SUPPORTS AN

INTERFACE TO A GPS RECIEVER.THIS OPTION

ALLOWS TIME SYNCHRONISATION TO GLOBAL

TIME.

SERIAL

PORT

IRIG

PORT

REDUNDANT DPU OPERATION

• ONE DPU IS DESIGNATED AS THE PRIMARY AND THE OTHER DPU , THE SECONDARY.

– THE PRIMARY IS ALWAYS AN EVEN ADDRESS WHILE THE SECONDARY IS AN ODD ADDRESS

– THE IP ADDRESS OF THE SECONDARY DPU IS ONE NUMBER GREATER THAN THE ADDRESS OF THE PRIMARY DPU.

• INFORMATION BETWEEN THE BACKUP PAIR IS EXCHANGED BY MEANS OF A 100MBPS ETHERNET INTERFACE.

– A CAT5e ETHERNET CABLE IS USED TO CONNECT THE TWO DPUS TOGETHER.

• PROCESS CONTROL CAN BE TRANSFERRED AUTOMATICALLY(FAILOVER) OR MANUALLY BETWEEN PRIMARY & SECONDARY.

• AUTOMATIC FAILOVER CAN OCCUR FROM EITHER THE PRIMARY DPU TO THE SECONDARY DPU OR VICEVERSA & THIS OCCURS BASED ON THE HEALTH OF BOTH DPUS.

• MANUAL TAKEOVER CAN BE ACHIEVED BY PRESSING THE TAKEOVER BUTTON ON THE FRONT PANEL OF THE MODULE.

THANK YOU