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Configuration
4.3 Communication types
TIM 1531 IRC
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Operating Instructions, 02/2018, C79000-G8976-C468-02
4.3 Communication types
4.3.1 Communication types
"Communication types"
In this parameter group you specify the protocol for the telecontrol communication.
● Enable telecontrol communication
The communication with the communications partners via telecontrol protocols is
activated generally.
● Protocol type
–
ST7
The protocol is preallocated.
4.3.2 Communication via the SINAUT ST7 protocol
The ST7 protocol
Network types
ST7 is a protocol for telecontrol communication via WANs (Wide Area Network).
With ST7 it is possible to communicate via the following network types:
● Classic WAN networks
● IP-based WAN networks
Subscriber types
The following subscriber types that support the ST7 protocol are possible communications
partners:
● SIMATIC stations with TIM modules or a CP capable of ST7
● Control center applications capable of ST7
Connections
Communication with the ST7 protocol runs via configurable connections. You make the
required settings in the STEP 7 configuration.
Communication via single or redundant telecontrol connections
The ST7 communication between two subscribers runs via configurable paths. To do this,
telecontrol connections are created in the "Network data" editor in the "Telecontrol" tab, see
section Creating telecontrol connections for the ST7 communication (Page 99).
When different networks between two subscribers have been created in the network
configuration, you can create redundant telecontrol connections. In the configuration these