概述
  C2000  MD82  为8  路数字量输入（DI）和2  路数字量输出（DO）采集控制设备，DO可以输出常开（NO）、常闭（NC）两种状态。采用标准的Modbus  RTU  通讯协议，可通过RS485总线进行远程数据采集控制传输。
  本产品具有良好的扩展性能，可以与M244，M281，M2A8  等具有联网功能的采集设备通过方便灵活的级联扩展实现低成本以太网接入。提供5  年质保服务。特点：
  →8路数字量输入；
  →2路数字量输出；
  →I/O与系统完全隔离；
  →采用Modbus  RTU通信协议；
  →RS485通讯接口提供光电隔离及每线600W浪涌保护；
  →电源具有良好的过流过压、防反接保护功能；
  →丰富的指示灯。全面查看状态，及时排查故障；
  →安装方便。
  
  
    技术参数
数字量输入接口                                                                                                                                                                                                                                                                  DI                                                  8路干接点输入
DI有保护                                    过压小于240V  ，过流小于80mA                                                                                                                                                                                        数字量输出接口                                                                                                                                                                                                                                                                      DO                                                  2路C型继电器  2A  30VDC,1A  125VAC
DO有保护                                    过压小于60V,过流小于500mA
串口通信参数                                                                                                                                                                                                                                                                      接口类型                                      RS-485
波特率                                        9600
数据位                                        8  
奇偶校验                                    None
停止位                                        1
流量控制                                    None
通信协议                                    Modbus  RTU
串口保护                                      串口ESD保护  1.5KV
串口防雷                                    600W
串口过流，过压                        小于240V，小于80mA
电源参数                                                                                                                                                                                                                                                                                电源规格                                      9-24VDC    (推荐12VDC)
电流                                            200mA@12VDC
功耗                                            小于2W
浪涌保护                                    1.5kW
电源过压，过流                        60V，500mA
工作环境                                                                                                                                                                                                                                                                                工作温度、湿度                          -25~85℃，5~95%RH，不凝露
储存温度、湿度                        -60~125℃，5~95%RH，不凝露
其他                                                                                                                                                                                                                                                                                        尺寸                                              72.1*121.5*33.6mm
保修                                            5年质保保修  5年质保
其它开关量采集模块：
MD22  2路开关量输入；
MD82  8路开关量转485；
MD88  8路开关量采集模块；
MD16  16路开关量采集；