SFAR-1M-1AI1DOAbout the product SFAR 1M 1AI1DO has 1x AI (Analog Input) and 1x DO (Digital Output). Analog Input can work in 7 modes as voltage or current input. Digital Output is a NPN type open collector output with maximum load 250 mA, 55 V DC. Built in RS485 interface allows to easy connection over Modbus RTU ASCII protocol with a PLC makes the modules an external I O. The use of 32 bit ARM core processor provides fast processing and communication with the baud