Setting the N2 Controller address to be greater than 127 - Facility Explorer - LIT-12012045 - Field Device - N2 Controllers

Modernization Guide for N2 Controllers - Facility Explorer

Brand
Facility Explorer
Product name
N2 Controllers
Document type
User Guide
Document number
LIT-12012045
Revision date
2019-03-22
Language
English

About this task

N2-configured FX-PC controllers support the full range of possible N2 device addresses supported by the N2 protocol standard (1-255); however, they require special configuration for addresses above 127.

Note: This special configuration is required because FX-PC controller addresses above 127 were originally intended for use with the Wireless Field Bus system.

To set the FX-PC controller's N2 address to be greater than 127, follow these steps:

Procedure

  1. Disconnect the 24 VAC supply from the FX-PC controller.
  2. Remove the FC Bus connector from the FX-PC controller.
  3. Set the FX-PC controller's address DIP switch to the desired N2 address.
  4. Set the address switch segment labeled 128 to OFF.
    Figure 1. Switch setting for address 149 with 128 segment OFF

  5. Reconnect the 24 VAC supply to the controller.
  6. Using a CCT tool connection at the FX-PC controller’s SA bus, download the firmware and N2-configured controller application file. The download process prompts you to confirm switching the communication protocol to N2.
  7. Click OK to accept.
  8. After the download has completed, disconnect the 24 VAC supply to the FX-PC controller.
  9. Set the address switch segment labeled 128 to ON.
  10. Reattach the FC Bus connector to the FX-PC controller.
  11. Reconnect the 24 VAC supply to the FX-PC controller.