Binary direct voltage signals for process measurement and control systems
用于过程测量和控制系统的二进制直流电压信号

1988-09-30

过程测量和控制系统用二进制 直流电压信号
Binary direct voltage signals for process Measurement and control systems

2005-09-09

Binary direct voltage signals for process measurement and control systems; identical with IEC 60946:1988
过程测量和控制系统的二进制直流电压信号；与IEC 60946:1988相同

1991-06-01