Troubleshooting - Johnson Controls - LIT-12013765 - Wireless field bus - SEC - UCB

Smart Equipment Control Wireless Installation Guide

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The following information provides a general understanding of troubleshooting the WRG1830/ ZFR183x Pro Series Wireless Field Bus:

Table 1. General wireless network connectivity and discovery
Symptom Possible causes
The WRG does not start the network. Confirm that the ZFR1831 Coordinator Radio is connected to the ZFR port on the WRG Gateway.
The Network Engine cannot discover the WEFCs on the Remote Field Bus. Confirm that the Ethernet cable from the associated Ethernet switch is connected to the Ethernet port on the WRG Gateway.
A Network address conflict exists in which there are two WRG Gateways on the same trunk with the same Remote Field Bus Trunk address. Verify that the Wireless Field Buss Network Address is unique and not shared by another network.
Intermittent BACnet IP Communications. Refer to the Remote Field Bus section of Communications Bus Technical Bulletin (LIT-12011034).
In CCT, the controller information (or device discovery dialogue) shows an incorrect MS/TP address for a controller.
  1. Locate the devices with duplicate addresses.
  2. On one of the devices, change the PAN OFFSET setting to another setting, or change the MSTP address to the correct unique value.
  3. Wait for 10 seconds.
  4. Change the PAN OFFSET setting to the former setting.
Table 2. WRG Gateway
Symptom Possible cause
WRG Gateway is not recognized as a valid device to the NAE. The Network Engine has to be at version 7.0 or higher to have RFB capability. NCE does not support remote field bus.
The WRG Gateway cannot discover WEFCs. The ZFR Coordinator Router is in a panel or not properly installed.
WEFC does not come online. WEFC does not have Address Switch 128 set to ON. (FEC/FAC/IOM/VMA).
Table 3. Routers/WEFC
Symptom Possible cause
The ZFR Router or the WRZ shows intermittent offline at the network engine. Ensure that a wireless interference source (such as microwave oven or 2.4 GHz cordless phone) is not installed near the toggling ZFR Pro router, the WRZ, or the ZFR Pro Coordinator Radio.

Field devices installed on the trunk have duplicate MS/TP trunk addresses.

Note: An address conflict can exist between a coordinator and field controllers within the address range of 4 through 119.

Each field controller and coordinator on the FC bus must have a unique MS/TP address. Cycle power to the controller to force the controller to start communicating with its unique address.
The ZFR Router does not join the network. Ensure that the PAN IDs are set correctly.
Ensure network is open to add devices.
Table 4. WRZ sensors
Symptom Possible cause
The WRG cannot see the WRZ. The MS/TP address of the WRZ Sensor does not match the MS/TP address of the WEFC.
The WRZ Sensor values are unreliable. The factory calibration jumper (J5) is not installed.