Operator terminal for use with Modicon M171 PLC controllers. The device enables visualization and operation of the application and is specifically designed for HVAC solutions. The display and operation are managed via a 4-digit LED display and 4 integrated buttons. The device is equipped with a real-time clock. It includes an interface for LAN expansion bus. The housing is finished in gray. Connection is made via the LAN expansion bus (connection plug with 2 m cable included). Can be mounted flush or as a panel installation. Certified according to CE, cURus, CSA, EAC, RCM, RoHS China.