Modules (CC) - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 13.1

Controller Tool Help

Brand
Johnson Controls
Metasys
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
13.1
Revision date
2019-12-04
Language
English

All Central Cooling applications use the core logic listed as follows:

Network Inputs

  • OA-T (Outdoor Air Temperature): This module is loaded if the Outdoor Air Temperature (OA-T) optional sensor is not selected.

  • SYSTEM-EN (System Enable)

  • TUNING-RESET: This module is used to reset the tuning parameters to the default values present after the initial application transfer to the device.

See the Network Input Modules section.

Setpoint/Miscellaneous

  • PMPDOWN-TIME (Pump Down Time): This floating constant (Constant) delays the pump stop command allowing the primary cooling equipment to maintain flow after shutdown.

State Generation

  • Chilled Water System Enable (System Enable): This module enables and disables other modules based on the SYSTEM-EN and Outdoor Air Temperature values.

  • PID Tuning Reset: This module forces every output controller to reset the Proportional Band and Integral time of every PID to default values based on current process ID.