Siemens SIMATIC S5 Manual page 112

S5-95U, SINEC L2
Communicating with the CP 5430 Communications Processor
If you want to connect other SIMATIC S5 controllers (S5-115U, S5-135U, S5-155U) to the network,
you can use the CP 5430 communications processor (see Figure 6-1).
You configure the desired PLC-to-PLC connection in DB1 of the S5-95U, and program function
blocks L2-SEND and L2-RECEIVE. For this PLC-to-PLC connection, configure the default
connection in the CP 5430. The CP 5430 can communicate with the S5-95U using its data handling
blocks SEND and RECEIVE.
When making entries in the COM 5430-VERB editor screen, note the following:
• You must enter the job number configured in DB1 of the S5-95U in the SEND/RCV-ANR (local
parameters) column. The job number corresponds to the station address of the partner station
( section 6.2).
• SAP (local parameter) = station address of the partner station + 1 (
explanation and definition of the SAP numbers in the case of the S5-95U)
• The "Remote Parameters" columns are irrelevant for an S5-95U as communications partner.
You will find additional information on the connection of the CP 5430 to the SINEC L2 network in the
"SINEC L2 Local Area Network, CP 5430 with COM 5430" Manual, order number 6GK1 970-
5AA00-0AA0.
EWA 4NEB 812 6112-02
Data Transfer with PLC-to-PLC Connections
Appendix B for an
6-3