Function Packages
SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual Unrestricted 63
DC8-037-2.02, Edition 10.2017
3.2 Telecontrol
The function package Telecontrol includes the following functions:
• Communication with other stations via selectable protocols
─ Protocol elements
─ Automatic or selective data flow routing
─ Data storage
─ Priority control
─ Monitoring of the communication links upon failure
• Communication within the Automation Unit
• Protocol element control and return information
• Archiving of events (DEAR)
• Process data archive
• Test functions
• Process data input and output
Note
The listed functions are described in detail in the document SICAM SICAM RTUs Common Functions
System and Basic System Elements.
3.2.1 Communication with other Stations
3.2.1.1 Protocol Elements
The communication function controls the transmission of messages via protocol elements to
other automation units or control systems.
A protocol element is based on hardware integrated in the Master Module for serial or
LAN/WAN communication, and supports protocols according to IEC 60870-5-101/103/104, as
well as various protocols for the communication with third-party systems.
Communication in Transmit Direction
• The messages to be transmitted are learned through the automatic data flow routing and
stored in the data storage
• The transfer of the messages from the data storage to the protocol elements takes place
via a priority control in order to optimally utilize the transmission route
Communication in Receive Direction
• Messages with process information are distributed to all functions within the automation unit
• Messages with system information are either processed directly (example: station interroga-
tion) or distributed further based on their destination address (CASDU) (example: mes-
sages for remote maintenance)
To Next Page
Loading...
Need help?
General
