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ACN SR1 with ACN I/O

ACN SR1Small rail mounted controller

ACN SR1 is a controller that is designed for embedded and standalone applications. ACN SR1 is a part of the ACN I/O family and is used with the ACN I/O units.

ACN SR1 can be used in combination with ACN RT, ACN CS, and Metso DNA VME controllers.

ACN SR1 is ideal for small size and distrib-uted applications. The small size of the controller and ACN I/O enable the installa-tion of the units in field cabinets.

Key features• Small size• Advanced control features• Fast control cycles, down to 20 ms• No moving parts (fan or hard disk)• One-to-one redundancy capability• 100 Mbit/s Ethernet connections for communica-

tion with other Metso DNA nodes• Removable SD-card

ACN SR1 is to be used with ACN I/O only. There is no support for those field buses and external interfaces that use serial/Ethernet communication. If field buses or external interfaces are needed, then ACN CS or ACN RT controller should be used.

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ACN SR1 and dedicated Bus Controller Unit for ACN I/OIn case ACN SR1 is used with a dedicated Bus Controller Unit (IBC), the ACN SR1 only executes a process control application. Bus Controller Unit handles the communication with the ACN I/O units. This configuration enables ACN SR1 to commu-nicate with two Bus Controller Units each with a maximum of 16 ACN I/O units.

ACN SR1 with integrated Bus Controller Unit functionality ACN SR1 process controller functionality and Bus Controller Unit functionality can be integrated into a single unit. This configuration enables ACN SR1 to communicate with a maximum of 16 ACN I/O units, as one ACN I/O group.

ACN SR1 with integrated Bus Controller Unit (IBC) and Power Supply UNIT (IPSP)

ACN SR1, Power Supply UNIT (IPSP) and Bus Controller Unit (IBC)

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Function block diagram

EngineeringThe engineering library of the ACN SR1 provides function blocks for the controls at all levels including basic process control as well as advanced controls such as Fuzzy controls.The Metso DNA Function Block CAD (FbCAD) is used for designing function block diagrams for process control loops and sequences.The function block diagrams are saved in one common database that is located on the Engi-neering Server. A function block diagram is simul-taneously a graphical document of an application, which is loaded in the runtime environment. This ensures that the documentation is always up-to-date.

ACN SR1 process controllers and ACN I/O

Connection to other Metso DNA nodes

Metso DNA Ethernet network

Field I/O Cabinet 1 Field I/O Cabinet 2

Internal bus - Connection between ACN SR1 and IBCs

Fiber optic Ethernet cable Twisted pair Ethernet cable Internal cable

ACN SR1

ACN SR1

Architecture ACN SR1 is designed for small size embedded appli-cations and for distributed applications where the number of I/O’s per controller is small.An example of a distributed application with two ACN SR1 controllers is shown beside. ACN  SR1 controllers are installed in a field cabinet with two ACN I/O groups each.ACN SR1 has a removable SD-card memory that has the parameters that are needed when a node is starting. If a reserve node is taken in use, the SD-card is unplugged and switched to a reserve node.In a typical configuration, the real-time operating system, process controller software, and application are loaded from the Backup Server when the node is starting.An alternative configuration enables booting from the SD-card. The SD-card contains the real-time operating system, process controller software, and application.

For more information, contact your local automation expert at Metso.

www.metso.com/automation

The information provided in this brochure contains descriptions or characteristics of performance which in case of actual use do not always apply as described or which may change as a result of further development of the products.

An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract. Availability and technical specifications are subject to change without notice.©

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Dimensions [H x W x D] 125 x 35 x 95 mm

Weight 380 g

Protection IP20

Memory 256 MB

Processor PowerPC

SD-card 1 GB

Drives N/A

Expansion N/A

Operating temperature 0 °C... +70 °C

Storage temperature 0 °C... +70 °C

Power supply 18...36 VDC

Power comsumption < 3 W

Operating system real-time operating system

D201291 ACN SR1 Node

D201711 ACN SR1 Base Licence, per node

D200990 Process Controller Capacity Licence /100 I/Os

Number of I/O groups max. 2

Number of I/O channels max. 256

Control cycle time 20 ms...64 s, typical 400 ms

ACN SR1 controller

Technical specification• Metal enclosure• Fully fan-less structure, cooling implemented

with heat sinks

InterfacesThe interfaces available in ACN SR1 are: • One Ethernet port 10/100Base-T on CPU board

for communication with the Metso DNA nodes• Interface to the ACN I/O synchronic cabinet field

bus

Performance

Licenses and hardware