Configuring Modbus ASCII mode - AQT400

AQT400 Series Configuration Guide

Document code
M212059EN
Revision
C
Language
English (United States)
Product
AQT400
Document type
User guide
  1. Establish a connection to AQT400. See Connecting to AQT400 with RS-232 (CLI).
  2. Port settings are 7E1 (7 data bits, even parity, one stop bit). To use the RS-485 port in Modbus ASCII mode, type the following:
    set rs485_baud=9600
    set rs485_mode=1
    set rs485_parity=e
    set rs485_databits=7
    write --really
    reboot --really

    If you connect several devices to the same port, define the correct parity setting.

  3. To reboot the device and check that the settings are correct, type the following:
    reboot --really
    show rs485_mode
  4. When done, close the connection.