ABB DCS PM856 CPU ABB AC800M PLC AC 800M Controller

ABB AC 800M PM856 Controller

The ABB AC 800M PM856 controller is a family of rail-mounted modules, consisting of AC 800M CPUs, communication modules, ABB AC800Mpower supply modules and various accessories. Several CPU modules are available that vary in terms of processing power, memory size, SIL-rating, and redundancy support.

Each AC 800M PM856 CPU module is equipped with two Ethernet ports for communication with other controllers and for interaction with operators, engineers, managers, and higher level applications. A Flash memory card can be inserted into a slot in the AC 800M PM856 CPU module to store the application and data.

The connectivity and expansion options make the AC 800M PM856 exceptionally open and scalable, that is, easy to connect to the surrounding world of supervisory systems and intelligent devices of all kinds – and adaptable to changing requirements as the process it controls changes or expands.

AC 800M High Integrity Controller
The ABB AC 800M PM856 High-Integrity offers an IEC 61508 and TÜV-certified control environment for combining safety and business critical process control in one controller unit without sacrificing the safety integrity.

The ABB AC 800M HI is certified to comply with the requirements of:

  • Requirement Class AK 1 – 4 according to DIN V 19250/DIN V VDE 0801
  • Safety Integrity Level 1 – 3 according to IEC 61508
  • Category 1 – 3 according to EN 954-1

 

The ABB AC 800M PM856 controller can be configured with both Compact Control Builder and ABB 800xA control builder.

When configured with the Compact Control Builder the ABB AC 800M is open to participate in any kind of control solution.

When configured with the ABB 800xA PM856 control builder AC 800M becomes a tightly integrated part of the 800xA DCS. PM856 Then offered and also described as a part of the ABB 800xA system offering.

ABB AC 800M PM856 CPU Modules
Several ABB AC800M PM856 CPU modules are available that vary in terms of processing power, memory size, and redundancy support. Each AC 800M CPU module is equipped with built in Ethernet port(s) for communication with other controllers and for interaction with operators, engineers, managers, and higher level applications. These ports can be configured for redundancy for those cases where availability is of paramount importance. It is also equipped with two RS-232C ports that can be used for point-to-point communication with programming/debugging tools and with third-party systems and devices.

AC 800 PM856 Com and I/O Modules
To each CPU PM856  module, a number of communication and I/O modules can be added,
for example:

  • Additional RS-232C ports
  • PROFIBUS DP, DP-V1 interface
  • ABB INSUM interface
  • MasterBus 300 interface
  • S100 I/O interface
  • S800L and S800 I/O modules
CPUs / Features AC 800 M PM851 AC 800 M PM856 AC 800 M PM860 AC 800 M PM861A AC 800 M PM864A AC 800 M PM865 AC 800 M PM866 AC 800 M PM891
Processor Unit PM856 PM856 PM860 PM861A PM864A PM865 PM866 PM891
High Integrity Controller No No No No No Yes No No
Clock frequency 24 MHz 24 MHz 48 MHz 48 MHz 96 MHz 96 MHz 133MHz 450MHz
Memory (RAM) 8 Mb 8 Mb 8 Mb 16 Mb 32 Mb 32 Mb 64 Mb 256 Mb
CPU redundancy support No No No Yes Yes Yes Yes Yes
Switch over time in red. conf. max 10 ms max 10 ms max 10 ms max 10ms max 10ms
Ethernet channels 1 2 2 2 2 2 2 2
Performance,
1000 boolean operations
(a:=b and c)
0.46 ms 0.46 ms 0.23 ms 0.23 ms 0.15 ms 0.15 ms 0.09 ms 0.043 ms
Comm. modules on CEX bus 1 12 12 12 12 12 12 12
I/O clusters on ModuleBus (local I/O) 1 el. + 1 opt. 1 el. + 7 opt. 1 el. + 7 opt. 1 el. + 7 opt. 1 el. + 7 opt. 1 el. + 7 opt. 1 el. + 7 opt. 0 el. + 7 opt.
I/O capacity on ModuleBus (local I/O)
(Non redundant confi guration only)
max 24 I/O
modules
max 96 I/O
modules
max 96 I/O
modules
max 96 I/O
modules
max 96 I/O
modules
Limited, see user
manual for details
max 96 I/O
modules
max 84 I/O
modules
Supported Communication modules
Profibus Foundation
Fieldbus
RS-232 C MB300 INSUM Drivebus S100 I/O
interface
Genius
TRIO I/O
Satt I/O
Module CI854A CI860 CI853 CI855 CI857 CI858 CI856 CI862 CI865
Protocol DP-V1
(PA via
Linking
Device)
HSE
(H1 via
Linking
Device)
Modbus
master,
Comli
master/slave,
Siemens
master,
User defi ned
protocols
MB300 IEEE 802.3 ABB’s
Drivebus
ABB’s
S100 I/O
Genius ABB´s
Satt I/O
Master or slave Master Master Master/slave Master/slave Master Master Master Master Master
Number of channels 1 1 2 2 1 1 main, 2 aux 1 1 1
Supported Communication modules
ModbusTCP IEC 61850 AF100 Ethernet/IP PROFINET IO
Module C1867 C1868 C1869 C1873 C1871
Protocol Modbus TCP IEC61850 AF100 Data set Ethernet/IP PROFINET IO
Master or slave Master/slave Master Master/slave Master Master
Number of channels 2 1 2 1 1

ABB AC 800 M PM856  Date sheet and Manual.

 

  • AC 800M and S800 I/O – Getting Started
    English – 2009-03-16 – 1,09 MB – pdf – User manual

  • Compact 800 AC 800M Process PLC 5.1 Overview
    English – 2011-06-22 – 3,36 MB – pdf – Brochure
    • System PM856  800xA Safety, TÜV certificate Z10 08 10 29902 005 (pdf, 1.24 MB)
    • System PM856  800xA 5.0 AC 800M Controller Data Sheet (pdf, 0.09 MB)
    • System PM856 800xA Safety Lifecycle Services Overview (pdf, 0.83MB)
    • System PM856  800xA Safety – Overview (pdf, 1.48MB)

ABB AC 800 M PM856 Features & Benefits

  • Scalable, cost-effective design
  • Common environment for process and power automation and safety
  • Fault tolerance for maximum plant availability
  • Open architecture reduces lifecycle costs
  • Integrating, for plug-and-procedure connectivity
  • Comprehensive maintenance features reduce downtime
  • Flexible I/O for all plant environments
  • Wide-ranging control functionality meeting all needs

 

2 replies
  1. hem kumar dadsena
    hem kumar dadsena says:

    we have used ABB AC 800 M PM856 controller and Intellution ifix, required to update presently.Problem faced i.e. software installation,feed back,speed response etc.
    presently plc system with scada is running, software with scada need to be corrected.

    Reply

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