PLC 问世以来,尽管时间不长,但发展迅速。为了使其生产和发展标准化,美国电气制造商协会 NEMA(National Electrical Manufactory Association) 经过四年的调查工作,于 1984 年首先将其正式命名为 PC(Programmable Controller),并 给 PC 作了如下定义:“PC 是一个数字式的电子装置,它使用了可编程序的记忆体储存指令。
Allen Bradley 50510 Control Board AB
ABB 2600T 264D Safety Pressure Transmitter Kit
Giddings & Lewis 502-02734-50 I/O Logic 5020273450
Fagor MKT-27 Linear Encoder MKT27
SORTIES NUM FC-200577/D OUTPUT CARD FC-200577D NIB
SANYO SAN DRIVER PDT-A12-20 PDT-A- 12F -20
TAIYO TNA1-IF50 AC SERVO NUTRUNNER SYSTEM
TAC MNB-1000-15 I/O Bacnet Module MNB100015 T.A.C.
Honeywell VA301D2C0MB-NET-0 Gaspoint2 Gas Transmitter
Signet Scientific MK584 Powered Flow Meter MK-584
Symbol PDT6100 PDT6146-Z7S63HUS Barcode Scanner
Texas Instruments 500-5031 32 Output Module 5005031
GE FANUC IC693CPU331K 90-30 CPU Module
Allen Bradley 2707-M232P3D Operator Interface Panel AB
Johnson Controls DX-9100 Controller FA-DX9100-8454
Schneider Modicon 140CRA21110 MB+ Drop AC Module
Simplex 673-090 Time Control Center 673090