對(duì)于PLC來說,70年代中期曾經(jīng)開發(fā)過專用操作站,但不太成功。后來它就沒有開發(fā)專用操作站,當(dāng)時(shí),PLC只處理開關(guān)量,在控制器上的數(shù)碼顯示作為人機(jī)界面也能滿足要求。PLC的控制器和I/O之間用網(wǎng)絡(luò)連接。到80年代末和90年代,模擬量控制進(jìn)入PLC,。用戶感到?jīng)]有以CRT為基礎(chǔ)的人機(jī)界面很不方便,用戶選用通用監(jiān)控軟件,運(yùn)行在NT平臺(tái)上,采用普通微機(jī)作為硬件平臺(tái),編出各個(gè)PLC的驅(qū)動(dòng)軟件,這樣PLC也有了操作站。
Square D QMB Branch Switch 200 Amp QMB324W Fusible 240V
Honeywell ISSC 621-1101 Isolated Input Module 6211101
CH/Westinghouse HJD3250F 250 Breaker w/JT3200T 200A Trip HJD3200 Cutler Hammer
Cutler Hammer WH HJD HJD3250F JT3200T HJD3200 200 A Amp
Westinghouse HMCP HMCP250W5W 250 A 250Amp Amp 250A
Westinghouse Panelboard Switch FDPS364 200 Amp A FDP
CH/Westinghouse HJD3250F 250A Breaker w/JT3200T 200A Trip HJD3200 200 Amp Cutler
ABB 437W7790 Type 32R Circuit Shield Reverse Power Relay Range 22-260 W 24 VDC
Siemens 6SN1114-0NB01-0?AA1 611U Option-Profibus DP3 NIB
Bussmann JCL-2R 70A Fuse JCL2R 5.08kV R-rated Buss NIB
Bently Nevada XDCR I/O & Record Terminals 81545-01 Alarm Relay Outputs 78462-01
Bently Nevada 3 Wire RTD Input Channel 82368-01 79532-01 PWA79532-01 F