System Components and Technical Data
98
Unrestricted
SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual
DC8-037-2.02, Edition 10.2017
5.5
Protocol Elements
Note
The hardware of the protocol elements is integrated on the Master Module. The relevant technical data
are described there.
5.5.1 UMPMT0,
UMPST0
5.5.1.1 Functions
Communication of a central station with one or several substations in multi-point traffic.
Central Station
•
Serial communication protocol according IEC60870-5-101
UMPT0 is central station
•
Unbalanced transmission Master
─
Network configuration
−
Multipoint-partyline
−
Multipoint-star
−
Max. connections: 100
─
System or device (application function)
−
Controlling station
•
Physical layer / data flow control
─
Unbalanced interchange circuit accordingV.24/V.28 standard
─
Transmission medium (half duplex)
─
Byte Frame (8E1)
─
Data flow control Bit in receive direction
─
Data flow control Bit supervision
•
Interoperability according to IEC 60870-5-101 Ed.1
•
Interoperability according to the following document:
─
SICAM RTUs Interoperability IEC 60870-5-101/104
(DC0-013-2)
•
Data acquisition by polling (station interrogation)
─
Continuous Interrogation of a Remote Terminal Unit
─
Station failure delay
•
Acquisition of events (transmission of data ready to be sent)
•
General interrogation, outstation interrogation
•
Clock synchronization according IEC 60870-5-101
─
Clock synchronization with <TI:=103> clock synchronization command
─
Acquisition of transmission delay (primary station) used for correction of clock syn-
chronization (with request status of link = proprietary)
•
Command transmission
─
Demand
─
Set control location
─
Check control location
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