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Modbus offset addresses for ABB AC500

Created: 2009-10-08

Updated: 2009-12-16

ahmed waleed - 2009-10-08

Dear All,

Please can anyone tell me where i can find the Modbus offset addresses for ABB AC500 PLC.

I really new to the whole thing (PLC) and i want to know more.

Thanks in advance

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Originally created by: Lars Gravengaard

Hi I hope this can help you.

ABB Modbus adress      =    Real Modbus adress
%MW0.0               =   40001
%MW0.1000            =   41001 
Please note that the ABB AC500 PM571 V1.2 can only use the address from %MW0.0 to %MW0.2047 (40001 to 42048)

You can download a free program to test your Modbus from here w www.modbustools.com w .

Best regards,

Lars Gravengaard

samuel - 2009-12-16

Hi!

You can also check your ModBus network with this:

http://qmodbus.sourceforge.net/ m

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Modbus offset addresses for ABB AC500