How to program parameter fb915?

 Hello i have to use same program for read one dg controller so use fb915 and also give config db parameters through simatic modbustcp wizard and that db is given in db para of fb 915 but I can’t read data from controller can you explain or give samples program so i can parameter fb915 

thanks in advance 

Atul Gupta

 

Wüstenräuber

Hi,

these 4 projects are only example projects - no finished user projects. (The separate blocks you will find in the library.)

If you have 15 Relay, I assume the CPU is the active partner, who should read out data from the relay. So the CPU is the client and the relay is the server.
If the relay can establish only 1 connection, then you need single-sided configuration (S7 is redundant, relay is stand-alone). If the relay can establish 2 connections you can use a double-sided configuration (both are redundant).

Wüstenräuber

Hi.. 

Thanks for your valuable feedback. You are right these are sample projects.

So, should I go with “3: H Single-sided (Client)”

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Split from Redundant Modbus TCP/IP with 412 5H CPU.