TXP-CLC Course
Alternative solutions with AS 620 B (1)
Function modules (FUM) and/or Signal modules (SIM)
M M
Field
Field
Field
Profibus
Profibus
AP
AP
FUM
FUM
FUM
FUM
FUM - Configuration
FUM - Configuration
I&C room
I&C room
I&C room
I&C room
Centralized
Centralized
Distributed
Distributed
AP
AP
JB
JB
JB
JB
SIM B
SIM B
SIM B
SIM B
SIM - Configuration
SIM - Configuration
Interfacing to the process takes place via I/O modules to which the I/O
comprising measurement transmitters and actuators are connected. Two module
types are available in AS620 to support a central or a distributed configuration:
• FUM modules (function modules) for central configurations
• SIM modules (signal modules) for distributed configurations
FUM modules
FUM modules have been specially developed for power plant applications. Within
the context of the higher I&C levels, the FUMs are equipped with preprocessing
units with medium to high processing performance.
The most important FUM tasks are:
• Signal acquisition, conditioning, processing, monitoring, and sensor supply
• Individual open and closed-loop controls
• Time tagging with 1 ms resolution for events (both analog and binary)
FUM modules are inserted into sub-racks that are mounted in electronics
cabinets and are linked to the AP via the cabinet bus
Training Center
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