talking with modbus tcp ip device

[monforet]

hello there ;

i need link or clarify that solve my question. i have device (wayjun converter)

that is work with modbus tcp/ip protocol and im using (labview real-time module)

so what should i do (step by step) to read or write in register of converter , i saw more links but i found list of error.  initially i want to use modbus poll simulator instead of wayjun converter . 

best regards

[Mark_Yedinak · Accepted solution]

Use the NI Modbus library. You can get it via the JKI package manager that is included with LabVIEW. That will give you  the necessary functions you need to read/write Modbus registers.

[monforet]

great job ...

I used that library and i got good result but now I'm looking to code that read coils data modbus tcp with out using any buttons that used to get reading by pressed...so I'm searching code read continuously from  register of modbus.

best regard

[Jamosgee]

You should learn how to use a while loop, if you want it to run continuously.