Rockwell Allen-Bradley
SLC500: 1747/1746 series
MicroLogix: 1761/1763/1762/1766/1764 series
CompactLogix: 1769/1768 series
Logix5000: 1756/1789/1794/1760/1788 series
PLC-5: 1771/1785 series
Schneider Modicon:
Quantum 140series:CPU processor module,Communication module,Analog input output module,Digital input output module
GE:
IC693/IC695/IC697/IC698/IC200/IC660/IC670 CPU module ,Communication module ,Analog digital module
EX2100,EX2000Excitation system card ,IS200 series DS200 series
Invensys Foxboro:
I/A Series system,FBM(input / output modules) sequential control,Ladder logic control, Accident recall processing,Digital-to-analog conversion,Input / output signal processing,Data communication and processing
Invensys Triconex:
Redundant fault-tolerant control system,the most modern fault-tolerant controller based on triple-module redundancy (TMR) architecture
Westinghouse:
OVATION system,WDPF system,WEStation system
Honeywell:
Alcont,Experion LS,Experion PKS,Experion HS,Plant Scape
TDC 2000,TDC3000,TPS,security system
AND SO ON