Excuse me which bosses know what this is,

CodePudding user response:

Data validation failure

You take off your project, directly through the modbus testing tool

Shipping department will check failure, the ans not words, can only use the finished tool test

Ps: assignment directly assign not, why get a string,

CodePudding user response:

reference 1st floor wanghui0380 response:

data validation failure
You take off your project, directly through the modbus testing tool

Shipping department will check failure, the ans not words, can only use the finished tool test

Ps: assignment directly assign not, why get a string conversion,

This tip is not connected? I tried the letter jie PLC is allowed, mitsubishi is like this, it does not support the modbus or what problem?

CodePudding user response:

If so, please let your hardware engineer, let him put the communication configuration to the modbus rtu,

CodePudding user response:

May be mitsubishi is not supported modbus or no opened, in the setting of mitsubishi communications to see "FX series PLC programming and application" (mechanical industry publishing house)

CodePudding user response:

How to access points

CodePudding user response:

PLC Settings right

CodePudding user response:

See literal is checking errors,

CodePudding user response:

Can't see the code, enlarge point

CodePudding user response:

Use https://github.com/dathlin/HslCommunication this library, support a lot of PLC,