I have a Siemens S7-200 plc I am using port 0 as a modbus port.
The address I am trying to read are "VW*****" in the Siemens program.
I read the help section and they state "V" addresses start the modbus 400000 register.
What i don't get is how this helps me determine the mod bus address for my data I need to read.
Is their a calculator or spread sheet that let's you put in the Siemens address and gives you a equivalent modbus address.
OR can someone give me a little more info on how to cross the addresses over.
THANKS
The address I am trying to read are "VW*****" in the Siemens program.
I read the help section and they state "V" addresses start the modbus 400000 register.
What i don't get is how this helps me determine the mod bus address for my data I need to read.
Is their a calculator or spread sheet that let's you put in the Siemens address and gives you a equivalent modbus address.
OR can someone give me a little more info on how to cross the addresses over.
THANKS