MD-CV3

The MD-CV3 is a sink voltage intrinsic safe barrier. It can read analog signals from hazardous areas (Zone 0 or 1) and transmit their values to a safe area (zone 2) through MODBUS. The MD-CV3 can support three channels, and they can all make a connection with the main station and communicate through the MODBUS-RTU protocol on the RS485 serial port, with a baud rate of up to 115.2 kbps. This allows for simultaneous Monitor/Configuration on an integrated CPU when communicating with PLCs or PACs directly. By using this barrier, you can preserve any equipment that becomes an ignition source, when they are in the vicinity of explosive gases. This is achieved by limiting the electrical and thermal energies. Furthermore, possible faults, which might occur due to short circuits and open circuits, will activate the Fault LED on the barrier to warn the user of possible danger. MD-CV3 can measure analog signals like voltage and current (as it applies to one channel) in a wide range of voltages, from -5~5v, 0~5v, 0~10v, and -10~10v, through to current in the range of 0 to 20 mA and 4-20mA. The current and power consumption of the input is about 208 mA and 5W, respectively, and it is mounted on a 35 mm DIN mounting rail acc.