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9 Communication
9.3 IEC 60870-5-104
194
SICAM MMU 7KG9663, Device Manual
E50417-H1040-C514-A3, Edition 01.2016
Updating the Cycle Time
The updating cycle is approximately 20 ms. The updating cycle includes:
•
Reading the binary inputs of the SICAM I/O Unit 7XV5673 and creating a process image in the
SICAM MMU
•
Updating the binary outputs of the SICAM I/O Unit 7XV5673 from the process image of the SICAM MMU
Monitoring Communication
The SICAM I/O Unit 7XV5673 monitors the communication with the SICAM MMU.
If the communication is interrupted, the corresponding
Indication x from Remote
becomes invalid, which is
controlled by SICAM MMU and which is connected to the corresponding binary output of the SICAM I/O Unit
7XV5673.
SICAM-MMU_7KG9663_US.book Page 194 Monday, December 7, 2015 12:22 PM