SFAR-S-8AI2DOAbout the product SFAR S 8AI2DO has 8x AI (Analog Inputs) and 2x DO (Digital Outputs). Analog Inputs can work in 7 modes as voltage or current input. Digital Output is an NPN type open collector output with maximum load 500 mA, 55 V DC. All inputs and outputs are isolated from RS85 and power supply with use of optical isolators. Built in RS485 interface allows to easy connection over Modbus RTU ASCII protocol with a PLC makes the modules an external I