Instrument Control (GPIB, Serial, VISA, IVI)

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modbus experts, help me!

hello everybody!

 

I`m working on an application where i have to control one or more PLC´s. the PLC´s are the same, so the registers I have to read/write are the same too. I have comunicate one PLC by now, i did it in two ways: using the DSC module (creating a I/O server and  shared variables)  and using the modbus library reading directly in the holding register addresses. Now, my problem is the next, i want to use this VI´s that i created, to control another PLC´s that I can addres it in the slave number that i want (0-255). how can i do that?  which is the best way to do this programaticaly, using DSC and creating a new server by program or using modbus lib and changing the the address to read/write?

 

please help me!

Best regards, Mikel

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