LM5 Modbus TCP

[admin]

Try connecting by using socket library and post the results. Try both port 10502 and 502.

Code:

sock = require('socket').tcp()
sock:settimeout(5)
ts, tu = os.microtime()
res, err = sock:connect('192.168.250.5', 10502)
log(res, err, os.udifftime(ts, tu))