Priority Value Select Object – Instance 31 Output Always Zero on MicroNet MN 550 Controller

[Product_Support]

Issue

In a MicroNet MN 550 controller, the output of Instance 31 of the Priority Value Select object consistently returns a value of 0, while all other instances function correctly.

Product Line

Satchwell MicroNet

Environment

MicroNet MN 550 controller

Cause

This issue occurs due to a firmware limitation in earlier versions of the MicroNet 50 controller. Specifically, Instance 31 does not behave as expected unless the controller is updated.

Resolution

Upgrade the MicroNet 50 controller to Firmware Version 5, released in August 2008. This version resolves the issue with Instance 31.

• Refer to TPA-LOND-08-0014.00 for detailed information about Firmware Version 5.