Schneider Electronic Modicon M171 controller series

The Modicon M171 controller series is at the centre of Schneider Electric’s offering for HVAC and pumping applications, focused on building automation. The series includes the Modicon M171 Optimised and Modicon M171 Performance.

The controller can be either DIN rail or wall mounted and is equipped with up to 27 integrated inputs and outputs. Additional controllers can also be networked.

The product is supported by ready-to-use architectures and application function blocks (AFB) which can be managed in just one intuitive software environment. The AFBs reduce energy consumption and help to improve system efficiency.

The controller includes Modbus SL and RS485/RS232 interfaces as part of the standard configuration. These allow the product to connect to a wide range of automation and instrument components, as well as providing access to the internet for remote reporting and retrieval of system data.

The Performance class can be integrated into BMS architectures. This is achieved by docking appropriate communication modules onto the controller. Depending on the version, they can provide web visualisation and remote download functions.

The Optimised class offers a streamlined unit, free of superfluous and extra functionalities, for users who want to develop simple to moderately complex solutions without requirements for BMS architecture integration. A Modbus SL or LAN expansion bus interface is integrated into the controller to allow set-up of a simple communication network.

An assortment of components is available for both controllers: thermostats equipped with a display for wall mounting; temperature, humidity and pressure sensors in various designs; and electronic expansion valve drivers.