COM BCM ULP is a communication module that is installed behind the Micrologic control unit of the ComPact NS630b-1600 devices. It receives and transmits information between the communication network and the Micrologic control unit. It uses the Ethernet or Modbus communication protocol for full compatibility with monitoring management systems. The COM BCM ULP module enables the transmission of measurement data, status data, maintenance data, and the programming of contacts. It must be connected to a communication interface (IFM for Modbus or IFE for Ethernet) to achieve full communication capability. An infrared connection transmits data between the Micrologic and the communication interface. The current is 30 mA at 24 V DC. It comes with a set of microswitches, a kit for connection to voltage triggers, and a terminal block.