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Alternative solutions with AS 620 B (1)
Function modules (FUM) and/or Signal modules (SIM)
I&C room
I&C room
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
2
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FUM - Configuration
FUM - Configuration
AP
FUM
FUM
AP
FUM
FUM
JB
JB
JB
JB
M
Centralized
Centralized
Training Center
SIM - Configuration
SIM - Configuration
AP
AP
I&C room
I&C room
Profibus
Profibus
Field
Field
Field
SIM B
SIM B
SIM B
SIM B
M
Distributed
Distributed
TXP-CLC Course
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