QJ71C24N-R4 Modbus communication

[madhan 0]

Hi all,

I would like to know how to communicate scale indicator device mettler Toledo ind 320 using  module QJ71C24N-R4 by predefined protocal 

 I also tired to communicate in CH1 with the G.INPUT instruction to communicate when the device in MT continue mode it does communicate but I dont know how to convert value

Now by trying modbus communication predefined protocal works fine but i cannot read data the is no SD/RD transmission happening 

Can anyone help me with this 

Thank you

serial monitor.gxw

serial monitor.gxw

[Gambit 326]

Your using Read input registers but it looks like you want to read holding registers ???

D0 but i don't see it set up in your program. I guess you want to use D10 but in your settings it's still D0

D100 has the start adress which should be 0 but in your program it's 0

Try reading 0ne register first instead of three and see if you have an offset of 1,.

 

Edited 24 Oct 2023 by Gambit