CP 1542SP-1, CP 1542SP-1 IRC, CP 1543SP-1
Operating Instructions, 01/2017, C79000-G8976-C426-03
95
Program blocks for OUC
Using the program blocks for Open User Communication (OUC)
Connections of Open User Communication are not configured.
For TCP / UDP / ISO-on-TCP communication via Ethernet, the blocks of Open User
Communication (OUC) listed below are used. For this, create a suitable program blocks. You
will find details on the program blocks in the information system of STEP 7.
Note
Different program block versions
Note that in STEP 7 you cannot use different versions of a program block in a station.
Supported program blocks for OUC
Program blocks for all three CP types
The following instructions in the specified minimum version are available for programming
Open User Communication for all three CP types:
●
TSEND_C V3.0 / TRCV_C V3.1
Compact blocks for connection establishment/termination and for sending and receiving
data
or
●
Connection establishment / connection termination
●
Sending and receiving data via UDP
●
Sending and receiving data via TCP or ISOonTCP
●
Sending e-mails
The program block can be found in STEP 7 in the "Instructions > Communication > Open
User Communication" window.
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