Application and properties
1.5 S7 communication via Industrial Ethernet
CP 243-1
16 Operating Instructions, 03/2012, C79000-G8976-C244-02
1.5.3 Communications partners
Communications partners
● S7-200 CPU with CP 243-1
● S7-300 CPU with CP 343-1, CP 343-1 Lean, CP 343-1 IT / Advanced
● S7-400 CPU with CP 443-1, CP 443-1 IT / Advanced
● PG/PC with OPC server
● PG/PC with STEP 7 Micro/WIN 32
The STEP 7 HW Config program shows you the types of S7-300 CPUs and S7-400 CPUs
that support the S7 protocol XPUT/XGET and can therefore communicate with the CP 243-1.
When you select an S7-300 or S7-400 CPU in the catalog of HW Config, this CPU must
support the "S7 communication" function.
Remember that the CP 243-1 does not support pure ISO connections. You should therefore
check the supported protocols of the communications partner of the CP 243-1.
NOTICE
Only one CP 243-1 may be connected to an S7-200 CPU. If additional CP 243-1
communications processors are connected, the S7-200 system may not function correctly.
Note
If you require communication with an OPC server, remember that the CP 243-1 does not
support automatic querying of the objects on the S7-200 (for example DBxx etc.).
A CP 243-1 can only communicate with an OPC server if this server supports the two S7
services READ and WRITE.
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