Feature:1. PLC Controller: 16 channel opto isolated digital input as well as 16 channel opto isolated digital transistor output.2. Working Safety: Equpped with status indicators, the power supply circuit also uses anti reverse connection for safety.3. Reliable Works: Adopting RS485 RTU standard communication, can be networked with PLC, etc. for better machine control.4. Practical Uses: Enables wide application in signal acquisition and control of industrial field equipment, very useful.5. Simple Storage: You can use dedicated upper computer to easily set the module parameters and save the data permanently.Specification:Item Type: PLC ControllerMaterial: ABS, PCBNumber of Input Bits: 16 channels. Digital Input: Optocoupler Isolated InputInput Signal Type: Switch contact signal or level signal. Input Signal Valid Range: DC 20-28VNumber of Output Bits: 16 channelsOutput Type: PNP transistor output. Output Capacity: 0.5A for 1 point or 2A for 4 points. Interface Type: RS485, DB9 male head. Baud Rate: 4800~115200Communication Format: RTU, 8 bit data, 1 bit stop, no parity (configurable). Address Range: 1~254Working Voltage: DC24V, with anti reverse polarity protection. Power Consumption: 2W~4WSurge Protection: 600WWorking Temperature: -20~+70Storage Temperature: -40~+85.Package List:1 x PLC ControllerNote:Pay attention to the correct operation.