ZKD-8I8SO-RS是一款串口通信控制的光耦隔离输入、大电流晶体管开关量输出的I/O模块。
主要用于:
?　　通过串口通信读取输入的开关量/电平电压信号的场合
?　　通过串口通信控制输出大电流晶体管开关量信号的场合
?　　和PLC协同工作用于DI点输入读取或者DO点输出控制的场合
?　　作为单片机/控制卡/工控机等设备的扩展卡读取或输出开关量/高低电平信号的场合
?　　需要对外部输入脉冲信号计数的场合
?　　需要I/O输入状态变化主动上报的场合(ZKD-8I8SO-RS is a I/O module of a serial communication controlled optocoupler isolation input and a large current transistor switching output.
Mainly used in:
The occasion of reading the input / level voltage signal by serial communication
Using serial communication to control the output of large current transistor switching signal
Work in collaboration with PLC for DI point input reading or DO point output control
An occasion for reading or exporting switch quantity / high level signal as an extended card of a single chip microcomputer / control card / industrial control machine and other equipment
An occasion requiring the external input of the pulse signal count
Situations where I/O input state changes are required to be reported)