SFAR-1M-2DI2DOAbout the product SFAR 1M 2DI2DO has 2x DI (Digital Inputs) and 2x DO (Digital Outputs). Digital Inputs can work as fast pulse counter up to 1 kHz, support PNP or NPN input types. Digital Outputs are PNP transistor outputs with maximum load 250 mA, 55 V DC. All inputs and outputs are separated from power supply and RS485 block with use of optical isolators. Built in RS485 interface allows to easy connection over Modbus RTU ASCII protocol with a PLC