以上几点应用是着重从质上讲的。从量上讲，PLC有大、有小。所以它的控制范围也可大、可小。小的只控制一个设备，甚至一个部件，一个站点；大的可控制多台设备，一条生产线，以至于整个工厂。可以说工业控制的大小场合，都离不开PLC。
Physik instrumente PI E-463 E463.00
Metrix datawatch II monitor/annunciation
Varian Turbo-V 250 Macro Torr 9699007
Themis sparc VME W/32M 858-4169-03 with Themis KSIC
Canon BG9-3718 BH8-0681-01 XYSTG-IF
Teradyne TW928 950-928-01/A & 949-717-00/B
Fluke PM6303A automatic RCL meter
Siemens simatic T
Sew eurodrive MDX61B0014-5A3-4-00
IQ VME
Siemens 6SC6100-0GA12 462010.9060.12 F G H L22-08
HV# Mitsubishi A2ASCPU A1S68AD A1SJ71LP21 PLC
Yokogawa Compumotor DYNASERV SR1015B62
HV# Mitsubishi uni-wire interface unit MQ-HUW
Allen bradley SLC 5/03 & IMC110 & 1746-NI4 & 1746-NIO4V
Radisys EPC-7 with EXM-13A & EXM-10A & EXM-4
Becton Dickinson Pulse Processor FACSCAN 03-20033-00
Becton Dickinson Pulse board 03-20031-03
LEP 73002020 73002080 & 73002040
Vacuubrand MD 4 & ABM Typ: 4EKGF63CX-4
