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HVAC Controller Conversion and Utility Automation

Legacy HVAC field controller conversion, SCADA/HMI visibility and utility automation.

  • HVAC
  • PLC
  • SCADA
  • Utility

Problem

Legacy HVAC controllers limited visibility, maintainability and integration with facility utility monitoring. Field changes were difficult to trace in SCADA.

Approach

Analog Control executed field controller conversion, migration to the new control structure, SCADA/HMI visibility, signal mapping, test and commissioning activities.

Result

Following field controller conversion, the HVAC automation structure was delivered with central SCADA visibility, alarm tracking and commissioning records.

PLC and fieldbus layout for industrial automation systems

Generic OT architecture reference diagram; does not contain real customer topology.

Scope areas

  • HVAC controller conversion
  • PLC/controller integration notes
  • SCADA/HMI screen structure
  • I/O, signal and control-logic derivation from P&ID and equipment lists
  • Alarm, trend and status monitoring
  • Commissioning and acceptance records

Confidentiality

Customer, site and project details are not disclosed for confidentiality.

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