Plant & field devices
Sensors, actuators and equipment interfaces provide information and carry out the control action.
Bring HVAC plant, controls and building information into a system your team can understand and use.

A building management system connects the equipment in a building with the people operating it. We start with the plant, the existing controls, occupancy patterns and the information your team needs. Johnson Controls Metasys provides a platform for supervisory control, alarms, schedules, trends and compatible integrations.
Discuss your building controlsEach layer needs a purpose, an owner and a tested connection.
Sensors, actuators and equipment interfaces provide information and carry out the control action.
Configured control logic connects the intended operating behaviour with the equipment.
Metasys brings schedules, alarms, trends and compatible system information together.
Operators review the building, investigate issues and manage authorised changes.
Choose the stage that matches your building and the work you need to plan.
Turn the existing plant and the operating objectives into a practical controls project.
Connect compatible plant and systems with a clear purpose, a defined data set and an operator view.
Use schedules, trends and plant information to identify where the building deserves closer attention.
Keep controllers, software, field devices and operating information supportable as the building evolves.
Organise plant graphics, alarms and trend information around the building and the people responsible for it.
Review occupancy schedules, setpoints and control sequences against the way the premises are used.
Create a route for upgrades, commissioning, maintenance and controlled changes to the system.
The first step is understanding the existing installation: controllers, field devices, supervisory equipment, software, licences and available backups. The proposal then defines what will be retained, replaced or integrated, with the required operating functions and acceptance tests. Product and protocol compatibility are checked against the actual equipment.
Use our guide to bring the existing controls, operating objectives and changeover requirements into the project brief.
Have a specific site or building in mind? Start with a conversation.
Talk to the teamStart with a survey. The installed controller family, software version, access credentials, licences, condition and available documentation determine the upgrade and support options.
Building management systems and controls are a technical service within SYREX Technologies. Cleaning, reception and wider building services sit with SYREX Facilities, with links between the teams where needed.
Compatible integration can be considered. The protocol, available data points, gateways, licences and required control permissions must be checked for each interface.
Tell us the location, the task and the timescale. We’ll connect you with the relevant team.