HRB32898–EN10

Daisy-chaining devices to the Smart Demand Controller

The RS-485 slave port allows the smart demand controller to be connected in a daisy chain with up to 31, 2-wire devices. In this document, communications link refers to a chain of devices that are connected by a communications cable.

Daisy-chaining 2-wire devices

  • If the smart demand controller is the last device on the daisy chain, terminate it with the terminator provided.

  • See RS-485 Communications Distances for the maximum daisy-chain communications distances for 2-wire devices.

The terminal’s voltage and current ratings are compliant with the requirements of the EIA RS-485 communications standard.

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
  • Shield conductors may be energized if not properly connected.
  • Shield wire should be installed per the device’s installation instructions and grounded at one end only.
Failure to follow these instructions will result in death or serious injury.

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