Siemens SIMATIC NET CP 243-1 IT Technical Manual page 62

Configuration
This screen is used to specify how many S7 connections are to be set up on your
CP 243-1 IT. Up to 8 such connections are possible. A screen appears for each
connection that you specify here. You can then configure the connection with this
screen.
Configuring the individual S7 connections
The following screens are used to configure the S7 connections which you set up
in the previous screen. First, specify for each of these connections whether your
S7-200 system is to be a client or a server. Depending on which option you
choose, the layout of the screen changes.
If your S7-200 system is to be a client for a connection, enter the address of the
communication partner and the Transfer Service Access Point ("TSAP") for this
partner. The data to be exchanged between your S7-200 system and the specified
communication partner must also be specified in an extra screen. This is where
you specify whether these data are to be read or written. Up to 32 read/write jobs
can be specified per connection.
If your S7-200 system is to be a server for a connection, you can assign an IP ad-
dress to specify which communication partner will have access to your system. You
can also set each server so that it allows access from every IP address. In addi-
tion, you must specify the communication access point ("TSAP") for that communi-
cation partner which you allow to access to your S7-200 system.
Keep Alive monitoring can be activated for both client and server connections.
For the communication access points ("TSAP") of your communication partner, see
the configuration of that particular partner. With an S7-200 system, this is done
with STEP 7 Micro/WIN 32. With an S7-300, S7-400 or OPC-based system, use
STEP 7 (see also chapter 4.4).
Note
Specifications of the communication access points ("TSAPs") in STEP 7 and in
STEP 7 Micro/WIN 32 must be compatible.
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CP 243-1 IT
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