Duplicate addresses - Verasys - Field Device - ZEC510

Verasys ZEC510 VAV Controllers Installation Guide

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Two or more devices on a communication bus cannot have the same address. If two devices on the same bus have the same address, performance can degrade or serious communication problems can occur. You can check for duplicate addresses in the following ways:

  • If a specific device is not communicating, remove the device and check if the device address remains online on the SBH. Alternatively, change the address of the device to the next available address, and check if the old device address remains online. This determines if another device is using the address.
  • If the bus communication problems are severe and no communication is present or you cannot determine where communication is unreliable, partition (disconnect and isolate) a portion of the bus and test the bus portion connected to the Zone Coordinator.