Modular Plantroom & IO Control with WAGO Automation

Scalable PLC-based control for HVAC systems, pump rooms, energy infrastructure, and smart building services — built on WAGO's reliable industrial platform.
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What is WAGO Industrial Automation?

WAGO’s PFC200 PLCs and 750 Series IO modules provide a modular, open platform for controlling everything from fans and pumps to hydronic systems, compressors, exhausts, and water treatment logic. Whether you’re managing a plantroom in a high-rise, a mechanical control panel, or a custom industrial process, WAGO delivers clean, serviceable, and highly programmable logic using IEC 61131 (CODESYS).
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Common System Architecture
🔹PFC200 PLC – Handles logic, communication, and SCADA links
🔹750 Series IO – Modular analog/digital inputs & outputs for field devices
🔹Field Sensors – CO₂, temp, flow, level, pressure
🔹Relay Outputs – For motor contactors, valves, VSDs
🔹Local Control Interface – Override panel or HMI
🔹Integration Gateway – BACnet/IP or Modbus RTU for BMS/EMS

HVAC equipment sequencing (boilers, chillers, VSDs, AHUs)
Pump start/stop, rotation logic, and VFD integration
Exhaust and make-up air control via CO₂ or pressure sensors
Hydronic loop control with temperature or pressure PID logic
Water tank level monitoring and valve actuation
Override panels and local/remote switch inputs
BACnet, Modbus RTU/TCP, MQTT, and KNX interfacing
Status indication, alarms, and runtime logging
Remote access and dashboarding (WebVisu, cloud, or BMS)
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Plantroom & Mechanical Services

AHU control with PID fans
Exhausts triggered by CO₂ levels
Redundant pump rotation based on runtime
Setpoint overrides for after-hours HVAC use
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Water Treatment & Building Services

Control solenoids, tank level sensors, and dosing pumps
Monitor flow meters and backflow valves
Sequence based on time, sensor feedback, or user logic
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Commercial BMS Integration

BACnet/IP interface with building head-end
Modbus RTU for energy meters or third-party devices
MQTT data publish to cloud dashboard or analytic platform

System Design Overview

WAGO energy management systems capture detailed real-time electrical data including voltage, current, power factor, active and reactive power, frequency, and total energy consumption (kWh). Using DIN-mounted 3-phase energy meters and CTs, these systems allow you to monitor site-wide loads, individual circuits, or equipment groups with precision. Beyond just raw readings, the platform supports advanced analytics such as harmonic distortion (THD), peak demand tracking, and solar production comparison. This data can be visualised via WAGO WebVisu dashboards, exported to external BMS via Modbus or BACnet, or published to cloud platforms using MQTT or REST API. Clients often use this insight to implement tiered load shedding, optimise solar self-consumption, track energy usage by zone or time, or automatically trigger alerts when usage exceeds predefined thresholds. Whether you're managing an office tower, warehouse, or mixed-use building, WAGO delivers reliable, actionable data that helps reduce operational costs and improve system performance.
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