ABB CM772F 3BDH000368R0001 Analog module industrial system controller

Description

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Following a changeover, the system operates as a system without redundancy with
only one processor unit in operation. You can replace the malfunctioning processor
unit while the system is running. After the replacement is carried out, the system
once again has a redundant processor unit.
If an error arises in the backup unit, you can also replace the backup unit while the
system is running.
Errors which occur in the backup unit can never affect the primary unit’s operation.
The primary unit and the backup unit are logically separated from one another.
Hardware errors in the primary processor unit cause the system to perform a correct
changeover. These hardware errors are “single errors”.
The application programming and the communication are totally unaffected by the
redundancy.
The serial port COM3, can not be used in redundant CPU configuration.
S800 I/O units are connected to the two CPUs by the optical ModuleBus. The
built-in electrical ModuleBus on the base plates can not be used for connection of
S800 I/O in redundant CPU configuration.
The number of ports and protocols, provided by the processor unit, can be expanded
by adding communication units to the CEX-Bus.
Examples of unit types that may be connected to the CEX-Bus are as follows:
• FOUNDATION Fieldbus High Speed Ethernet (FF HSE)
• PROFIBUS DP
• Dual RS-232C ports
• S100 I/O
• INSUM
• IEC 61850
• MasterBus 300
• Modbus TCP
• ABB Drives via DriveBus Interface
• TRIO/Genius
• Satt I/O via ControlNet (19” Satt rack I/O, S200 I/O and S200L I/O)
• AF 100
• PROFINET IO
• EtherNet/IP
This expansion provides the means of connecting remote I/O, fieldbus instruments
and additional RS-232C ports.