ABB DCS ABB AC800M PLC AC 800M Controller

ABB AC 800M Controller

The ABB AC 800M 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 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 CPU module to store the application and data.

The connectivity and expansion options make the AC 800M 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 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 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 control builder AC 800M becomes a tightly integrated part of the 800xA DCS. Then offered and also described as a part of the ABB 800xA system offering.

ABB AC 800M CPU Modules
Several ABB AC800M 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 Com and I/O Modules
To each CPU 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 / FeaturesAC 800 M PM851AC 800 M PM856AC 800 M PM860AC 800 M PM861AAC 800 M PM864AAC 800 M PM865AC 800 M PM866AC 800 M PM891
Processor UnitPM851PM856PM860PM861APM864APM865PM866PM891
High Integrity ControllerNoNoNoNoNoYesNoNo
Clock frequency24 MHz24 MHz48 MHz48 MHz96 MHz96 MHz133MHz450MHz
Memory (RAM)8 Mb8 Mb8 Mb16 Mb32 Mb32 Mb64 Mb256 Mb
CPU redundancy supportNoNoNoYesYesYesYesYes
Switch over time in red. conf.max 10 msmax 10 msmax 10 msmax 10msmax 10ms
Ethernet channels12222222
Performance,
1000 boolean operations
(a:=b and c)
0.46 ms0.46 ms0.23 ms0.23 ms0.15 ms0.15 ms0.09 ms0.043 ms
Comm. modules on CEX bus112121212121212
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
ProfibusFoundation
Fieldbus
RS-232 CMB300INSUMDrivebusS100 I/O
interface
Genius
TRIO I/O
Satt I/O
ModuleCI854ACI860CI853CI855CI857CI858CI856CI862CI865
ProtocolDP-V1
(PA via
Linking
Device)
HSE
(H1 via
Linking
Device)
Modbus
master,
Comli
master/slave,
Siemens
master,
User defi ned
protocols
MB300IEEE 802.3ABB’s
Drivebus
ABB’s
S100 I/O
GeniusABB´s
Satt I/O
Master or slaveMasterMasterMaster/slaveMaster/slaveMasterMasterMasterMasterMaster
Number of channels112211 main, 2 aux111
Supported Communication modules
ModbusTCPIEC 61850AF100Ethernet/IPPROFINET IO
ModuleC1867C1868C1869C1873C1871
ProtocolModbus TCPIEC61850AF100 Data setEthernet/IPPROFINET IO
Master or slaveMaster/slaveMasterMaster/slaveMasterMaster
Number of channels21211

ABB AC 800 M Date sheet and Manual.

ABB AC 800 M 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