Michael Number2
Member
Hey Guys,
Im trying to work out the Modbus memory map and the tags on the Beijer x2 HMI and 750-881 WAGO PLC. Have looked up the forum and found some great info but I'm just a little confused and also new to it. The 750-881 modbus register mapping conflicts with what i appear to be finding.
%IX0.0 -> Modbus Input address of 10000 (0x1000) which works but the documentation says it a configuration register?.
%QX0.0 ->Modbus Coil address of 00001 (0x0001) which i cannot get the HMI to read at all.
%MW0 ->Modbus holding address of 30000. (0x3000) which i actually found my AI data. Which displays on the HMI fine.
Think I've managed to confuse myself over this last week, so hopefully I've just overseen something simple. Im also trying to change some bits in a word at 1400 (0x300) but the HMI will not except that register location at all?.
Any suggestions would be great, thanks heaps in advance!
Im trying to work out the Modbus memory map and the tags on the Beijer x2 HMI and 750-881 WAGO PLC. Have looked up the forum and found some great info but I'm just a little confused and also new to it. The 750-881 modbus register mapping conflicts with what i appear to be finding.
%IX0.0 -> Modbus Input address of 10000 (0x1000) which works but the documentation says it a configuration register?.
%QX0.0 ->Modbus Coil address of 00001 (0x0001) which i cannot get the HMI to read at all.
%MW0 ->Modbus holding address of 30000. (0x3000) which i actually found my AI data. Which displays on the HMI fine.
Think I've managed to confuse myself over this last week, so hopefully I've just overseen something simple. Im also trying to change some bits in a word at 1400 (0x300) but the HMI will not except that register location at all?.
Any suggestions would be great, thanks heaps in advance!