Modbus register type

[admin]

You still haven't provided full profile that you are using for reading registers. You can also test using second RS-485 port if there's a hardware issue of some sort.
Another thing to try is to read register data via script. You need to disable modbus mapper before running this script. Post what you get in Logs tab. Change baud rate (19200) if needed.

Code:

require('luamodbus')
mb = luamodbus.rtu()

mb:open('/dev/RS485-1', 19200, 'E', 8, 1, 'H')
mb:connect()

buffer = {}

mb:setdebug(function(msg)
  buffer[ #buffer + 1 ] = msg
end)

mb:setslave(1)

res = { mb:readinputregisters(0, 16) }
log(res)

mb:close()

log(table.concat(buffer))