Huawei - Input Register not working

[admin]

Enable and configure RTU 1 in Modbus tab. Use Read test to check the communication first. Then try this script, change slave id (2) as needed:

Code:

mbproxy = require('mbproxy') mb = mbproxy.new() mb:setslave(2) res, err = mb:writeregisters(40120, 300) if res then   log('write ok') else   log('write failed', err) end