Operating terminal for use with Modicon M171 PLC controllers. The device enables the visualization and operation of the application and is especially suitable for HVAC solutions. The display and operation is carried out via an illuminated LCD display and 4 integrated buttons. The device has a total of one integrated analog input and is equipped with a real-time clock. An interface for LAN expansion bus is integrated. The housing is white. The connection is made via the LAN expansion bus (connector with 2m cable included in delivery). For wall mounting. Certified according to CE, cURus (UL recognized), CSA, EAC, RCM, RoHS China.