Intelligent Input/Output and Sensor device equipped with 2 digital inputs, 2 digital outputs with separate commons, and an SIO Bus. The digital inputs are opto-isolated and include a debounce filter, used for pulse counting or as remote status indicators. The digital outputs are opto-isolated transistor type, rated 27 VDC / 27 mA according to DIN 43864, programmable as internal alarm outputs or as remotely controlled output units. The SIO Bus allows integration of additional digital and/or analog inputs/outputs and/or environmental parameter sensors, even after commissioning, through Milli Pro devices. Up to eight alarms can be configured to drive digital outputs and/or generate status signals on Modbus registers. The device has a power LED, a status LED, and an RS485 communication LED. Communication protocol: Modbus-RTU RS485. Firmware remotely upgradeable. DIN rail mounting, 4-module size. Power supply: 230–240 VAC.
