1、自控常用英文缩写根据国家行业标准 HG20505-92 过程检测和控制系统用文字代号和图形符号序号缩写 英文 中文1 A Analog signal 模拟信号2 AC Alternating current 交流电3 ADAPT Adaptive control mode自适应控制方式4 A/D Analog/Digital 模拟/数字5 A/M Automatic/Manual 自动/手动6 AND AND gate “与 ”门7 AS Air supply 空气源8 AVG Average 平均9 CPatchboard or matrix board connection线路板或矩阵接线
2、板10 CHR Cbromatograph 色谱11 D Derivative control mode微分控制方式12 Digital signal 数字信号13 D/A Digital/Analog 数字/模拟14 DC Direct current 直流电15 DIFF Subtract 减16 DIR Direct-acting 正作用17 E Voltage signal 电压信号18 Electric signal 电信号19 EMF Electric magnetic flowmeter 电磁流量计20 ES Electric supply 电源21 FC Fail closed
3、 故障关22 FF Feedforward control mode前馈控制方式23 FI Fail indeterminate故障时任意位置24 FL Fail locked 故障时保位25 FO Fail open 故障开26 FS Flushing supply 冲洗源27 GS Gas supply 气体源28 H Hydraulic signal 液压信号29 High 高30 HH Highest(higher)最高（较高）31 HS Hydraulic supply 液压源32 H/S Highest select 高选33 I Electric current signal 电
4、流信号34 Interlock 联锁35 Integrate 积分36 IA Instrument air 仪表空气37 IFO Internal orifice plate 内藏孔板38 IN Input 输入39 Inlet 入口40 IP Instrument panel 仪表盘41 L Low 低42 LB Local board 就地盘43 LL Lowest(lower)最低（较低）44 LS Light source 光源45 L/S Lowest select 低选46 M Motor actuator电动机执行机构47 Middle 中48 MAX Maximum 最大49
5、MF Mass flowmeter 质量流量计50 MIN Minimum 最小51 NOR Normal 正常52 NOR NOR gate “或非” 门53 NOT NOT gate “非 ”门54 NS Nitrogen supply 氮源55 O Electromagnetic or Sonic signal电磁或声信号56 ON-OFF Connect-disconnect(automatically)通-断（自动地）57 OPT Optimizing control mode最佳控制方式58 OR OR gate “或 ”门59 OUT Output 输出60 Outlet 出口6
6、1 P Pneumatic signal 气动信号62 Proportional control mode比例控制方式63 Instrument board 仪表盘64 Purge or flushing device 吹气或冲洗装置65 PA Plant air 工厂空气66 R Automatic-reset control mode 自动再调控制方式67 Reset of fail-locked device能源中断锁住复位装置68 Resistance(signal)电阻（信号）69 RAD Radio 无线电70 REV Reverse-acting反作用（反向）71 RS Radiation source 辐射源72 RTD Resistance temperature detector 热电阻73 S Solenoid actuator电磁执行机构74 SP Set point 设定点75 SQRT Square root 平方根76 SS Steam supply 蒸汽源77 T Trap 疏水阀78 TV Television 电视机79 VOT Vortex transducer 旋涡传感器80 WS Water supply 水源81 CD Independent control desk 独立操纵台
