Configuration
4.21 Creating telecontrol connections for the ST7 communication
TIM 1531 IRC
Operating Instructions, 02/2018, C79000-G8976-C468-02
103
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An MSC connection can only run via the first Ethernet interface [X1] of a TIM or via the
serial interface of a module with the setting "IP-based".
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Connections between a PC application and a module can only be of the Network type
"Neutral" (S7 connections).
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For connections between a redundant PC application and a module, you need to create
two connections.
For a redundant ST7cc control center, in STEP 7 create two PC stations each with an
ST7cc application (see below).
Only in this way can you configure a connection from each application.
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A connection via a network in which two MD3 modems communicate with each other and
that are configured with 1200 bps / half duplex / AT mode is invalid.
Connections to redundant control centers and other properties
If you select a connection in the table "Telecontrol connections" at the top in the "Network
data" editor, three parameter groups are displayed in the "Properties" tab of the Inspector
window. Here you can check and, if necessary, correct the connection configuration and
configure the following properties:
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General
Here, you will find the basic properties of a telecontrol connection.
You can change the subscriber number of the connection starting point and endpoint.
This affects the configuration data of the subscriber.
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Redundant ST7cc/sc
If you use a redundant control center in your project (e.g. ST7cc or ST7sc), you must first
create two PC stations with CP and application and connect these to the communication
module via Ethernet.
Then you create a telecontrol connection from the application of a PC station (start point)
and the communication module (end point).
Only afterwards do you create the connection to the second application in the
redundancy group in this telecontrol connection.
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Add redundant ST7cc/cc partner
Activate the option for the selected telecontrol connection between application and
module.
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Redundant application
Select the second application from the "Redundant application" drop-down list.
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