8路隔离数字量输入模块，具有8路数字量输入，通信接口间采用光电隔离方式设计，不易受各种电磁干扰，大大提高通信的可靠性、安全性和保密性，支持MODBUS－RTU 通讯协议；可与多种品牌的PLC、RTU及工控组态软件进行网络通讯，广泛应用于分布式电力系统监控、各种工业自动化测控等系统中。-8-channel isolated digital input module with 8 digital inputs, communication interface between the use of photoelectric isolation design, less susceptible to all kinds of electromagnetic interference, and greatly improved communications reliability, security and confidentiality, support for MODBUS-RTU Communication agreement　with various brands of PLC, RTU and Industrial Control Configuration Software for network communications, are widely used in distributed power system monitoring, such as a variety of industrial automation monitoring and control system.