GB/T 19899-2005 过程测量和控制系统用二进制直流电压信号

25.040.40

霭Ii

中华人民共和国国家标准

GB/T19899-2005/IEC60946:1988

过程测量和控制系统用二进制

直流电压信号

Binarydirectvoltagesignalsforprocessmeasurementandcontrolsystems

(IEC60946:1988,IDT)

2005-09-09发布2006-04-01实施

中华人民共和国国家质量监督检验检疫总局.*

中国国家标准化管理委员会供叩

GB/T19899--2005/IEC60946:1988

目次

前言

1范围

2定义

3技术要求············，，·，，，···········。。。。·····································，，··，·····。。··········。。，····，···，，，·…2

3.1电路类型··‘·····，·，，，，，···············、·······，，，·，·························，，，·················、··。。·····，，·，…2

3.2标称24V电平的二进制直流电压信号的范围，·，·····t’········，·，”·，，··一·“4·甲，，’，，2

3.3标称负载系数，，，，，·…2

3.4漏电流·······2

3.5状态转换时间·······，·······。。，。·························。···············，··············，·。，，················一·2

3.6最短信号持续时间···。·。，···········································“······，·，·······················…·…3

3.7信号公共线·······，··，··························，，，，·。。·········。···。·‘。。·····，····。··················‘，，，，，，··…3

3.8接地·，·11·············，，，，，····，，，···‘‘·，，，，，，，，···，·，·，1·“······。···