Modbus Address Change - Honeywell EC-FX-NH3 Instruction And Installation Manual

MODBUS Address Change

Each device requires an address to communicate with the controller on the
network. The Modbus address normally comes factory programmed and
does not require to be programmed at startup. If it is determined that the
Modbus address needs to be using the LCD module to view or change the
Modbus address: The LCD module has two push-buttons; Accept and Scroll,
which will be utilized for this procedure (see Figure 7).
NOTE: To display the Modbus address, press the Scroll button anytime
during normal operating mode.
1. Plug in the LCD module to the LCD port on the PCB (see Figure 7 on
2. This module will power-up immediately and will display the normal
3. Press the Accept button.
4. You will then be prompted for a password. The password is MA.
5.
6. You will then be prompted to change the second letter. If it is already
7. If the correct password is entered, you will be sent to the MAIN MENU.
8. In the MAIN MENU, scroll until the ModbsID? screen is displayed.
9. Press Accept to enter Modbus Address Change menu. The current
10. If the Modbus address is correct, keep pressing the Accept button
11. If the Modbus address is not correct, using the Accept and Scroll
12. You will then be prompted to save the changes. Press Accept to
13. Use scroll button to navigate through the main menu. To exit the
NOTE: To view or change the Modbus address, the Manning
LCD Module is required. Contact Honeywell Analytics to
obtain the module.
NOTE: No two devices on the network can have the same
address. Each device needs to have a unique address.
page 26).
(idle) operating display.
Use the Scroll button to change the first letter to M . Then press the
Accept button.
set to A, press the Accept button.
programmed Modbus address will be displayed (if not programmed at the
factory, the default address is 001).
until you are prompted to accept the current Modbus address. You
will then be returned to the MAIN MENU.
buttons, change the Modbus address the correct value.
save, and Scroll to abort. You will then be returned to the MAIN
MENU.
menu, scroll until the LCD displays Quit? and press the Accept
button. This will return you to normal operating mode. The LCD
module can be unplugged at this time.
OPERATOR MANUAL
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