Primary States (Unit Enable Determination ASC) - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 15.0

Controller Tool Help
Product
Controls > Control Tools > Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
15.0
Revision date
2022-11-18

The State output is generated from the Network Mode and Hardware Mode inputs based on the Resolution Mode setting and the Power Fail Restart Timer. The following table shows the command hierarchy used to determine whether the State output should be Enable or Shutdown.

If the Timer input is False, the State output is Shutdown. The Timer input is False until the Power Fail Restart Time Expires.

When both Hardware and Network Mode inputs are Unreliable, the State output remains in the Enable state. When one of the two inputs is Reliable, its mode determines the state. When both inputs are Reliable, the Resolution Mode determines which has priority.

The State output matches the state of the mode having priority. For example, when Hardware Mode is Reliable and the Resolution Mode is Hardware Priority, the State output is set to Enable when Hardware Mode is Enable and Shutdown when Hardware Mode is Shutdown.

Table 1. Unit Enable Determination Command Hierarchy

Timer

Resolution Mode

Network Mode

Network Reliable

Hardware Mode

Hardware Reliable

State

False

*

*

*

*

*

Shutdown

True

*

*

False

*

False

Enable

Network Priority

Enable

True

*

*

Enable

Shutdown

True

*

*

Shutdown

*

False

Enable

True

Enable

Shutdown

True

Shutdown

Hardware Priority

*

*

Enable

True

Enable

Shutdown

True

Shutdown

Enable

True

*

False

Enable

Shutdown

True

*

False

Shutdown

Either Can Shutdown

Enable

True

*

False

Enable

Shutdown

True

Shutdown

Enable

True

Enable

Shutdown

True

*

*

Shutdown

*

False

Enable

True

Enable

Shutdown

True

Shutdown