描述
个人计算机（简称PC）发展起来后，为了方便，也为了反映可编程控制器的功能特点，可编程序控制器定名为ProgrammableLogicController（PLC），现在，仍常常将PLC简称PC。
COZY 90N75A 75,000 BTU FLOOR FURNACE 159688
MULTI SERVSWITCH KV155A-SFI 153220
TRANE TDX1B040A9H21B 40,000 DOWN/HORIZ GAS FURNACE 91%
TRANE TDX1B040A9H21B 40,000 DOWN/HORIZ 91% GAS FURNACE
DAYTON 36 INCH TUBEAXIAL FAN 162549
A HIGH SPEED T1 FORMAT PROCESSOR MT202A-449-R2 153235
BLACK BOX EB-LR3001A-CT21 REMOTE BRIDGE/ROUTER 155142
RHEEM EGSP30-B 30 GALLON 240 VOLT WATER HEATER 160639
BLACK BOX TD115VE#R3 SERIAL TEST COMPROBE FOR WINDOWS
ALLEGRO 9516 115/230 VOLT HIGH OUTPUT BLOWER 158058
AO SMITH BN37 7.5 HP MOTOR 230/460 VOLT 1765 RPM 81637
