VIPA System 300V - Page 148

Chapter 6 Deployment CPU 31x with TCP/IP Manual VIPA System 300V
6-58 HB130E - CPU - Rev. 11/50
Twisted pair
WinNCS
System 300V
CPU31xNET
System 300V
CPU31xNET
Station 1
Station 2
The example for the application is based upon a communication task that is
described in detail in the following passage:
Both of the CPUs contain the same PLC program, only the configuration of
the CPs have to be adjusted.
Both stations are sending and receiving 16 data words per second.
• Data block DB11 transfers the data words DW 0 to DW 15 at an interval
of 1s. data word DW 0 in DB 11 is used as message counter. It is only
incremented if the preceding transmit command was processed
correctly (completed without error). The remaining data words (DW 1 to
DW 15) can be used for the transfer of user data.
• The receiving station stores the data in DB12 (DW 1 to DW 15).
• SEND is configured with job number A-No. = 1 and with a page frame
offset SSNR = 0.
• RECEIVE is configured with job number A-No. = 11 and a page frame
offset SSNR = 0.
• The source and destination parameters must be configured directly.
At this point the purpose and the required settings have been outlined. The
programs provide additional details of the configuration of the handler
blocks. A detailed description follows.
Structure
Station tasks