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Support Questions / Re: DOUBLE WORD - WAGO PLC Modbus TCP
« on: March 24, 2017, 09:13:40 AM »
Sorry for necromancy but I thought I'd give a proper answer to the question
Since I implemented Modbus TCP in our library recently I can help
%MDx is located at 0x3000+x*2 and 0x3000+x*2+1
0x3000 (or 12288 in decimal) is the offset for "M" area registers. That means MW100 is on address 12388. MD100 is located on 12488 and 12489.
Hope that helps. Also make sure to be consistent with endianess so you don't swap the two words around.
/Surukai
Since I implemented Modbus TCP in our library recently I can help
%MDx is located at 0x3000+x*2 and 0x3000+x*2+1
0x3000 (or 12288 in decimal) is the offset for "M" area registers. That means MW100 is on address 12388. MD100 is located on 12488 and 12489.
Hope that helps. Also make sure to be consistent with endianess so you don't swap the two words around.
/Surukai