目前PLC制造厂家大都开发了计算机辅助PLC编程支持软件，当个人计算机安装了PLC编程支持软件后，可用作图形编程器，进行用户程序的编辑、修改，并通过个人计算机和PLC之间的通信接口实现用户程序的双向传送、监控PLC运行状态等。
PLC的电源将外部供给的交流电转换成供CPU、存储器等所需的直流电，是整个PLC的能源供给中心。PLC大都采用高质量的工作稳定性好、抗干扰能力强的开关稳压电源，许多PLC电源还可向外部提供直流24V稳压电源，用于向输入接口上的接入电气元件供电，从而简化外围配置。
BRADY R4310 PORTABLE THERMAL RIBBON FOR TLS2200
OMRON E2E-X20MD1-M1G PROXIMITY SENSOR TESTED QUANTITY
ALLEN-BRADLEY 1747-C20 SLC 500 PROCESSOR TO PERIPHERAL PROG. COMM. CABLE
DEVAR 2-WIRE PH SIGNAL TRANSMITTER QUANTITY
ALLEN-BRADLEY 2090-UXNFBN-S03 SER. A 3M SERVO MOTOR FEEDBACK CABLE QUANTITY
ALLEN-BRADLEY 8520-MS12F CNC 9/440 H.R. FEEDBACK CONNECTOR KIT QUANTITY
ALLEN-BRADLEY 1771-IQ16 B REV.C02 SER.B F/W. REV.A ISOLATED DC INPUT MODULE
PILZ PNOZ XV2 PNOZ XV2 3/24VDC 2N/O 2N/O T QUANTITY SAFETY RELAY
AC TECHQ15008B M3575B/M3475B 575V/480V 7.5HP AC TESTED * QUANTITY
VICKERS CARD HOLDER
CARLO GAVAZZI EUY C 220 EUYC220 220VAC AC LINE CONTROLLER RELAY
PATLITE LE-FBTM RED/AMBER/GREEN LED STACK LIGHT 24V AC/DC TESTED
ALLEN-BRADLEY 42GRP-9000 SER.A 10-40VDC NPN/PNP PHOTOSWITCH
YOKOTA INDUSTRIAL CO., LTD. YETC-2 FASTENING TORQUE CONTROLLER
BUSSMANN CDNF16 NON FUSIBLE SWITCH 600V 16A -
CUTLER-HAMMER / WESTINGHOUSE EHD3040 CIRCUIT BREAKER 40A SERIES C TESTED
JRM RESISTOR GH200W400 200W 400 Ohm * QUANTITY
CANON FG2-9716 PDLIF EXPANSION BOARD WITH RIBBON CABLE
INTERNATIONAL CONFIGURATIONS 47A2223X012 IEC 60320 C-13 13A POWER STRIP
SAFTRONICS SAF CA239 4 CHANNEL BUFFER AMPLIFIER BOARD TESTED
SIEMENS 3TF4122-0A CONTACTOR 18A 3POLE 120VAC QUANTITY
CUTLER HAMMER HMCP070M2C SERIES C CIRCUIT BREAKER 70A TESTED QUANTITY
ALLEN BRADLEY 1746-N2B 1746-N2 SERIES B CARD SLOT FILLER QUANTITY
IDEC ALD RED PILOT LIGHT PUSH TO TEST W/ BST-001.1 1-NC + BST-010.3 1-NO
MARATHON ELECTRIC 8VB 056H17T5302B 1/2HP 2960RPM 380VAC AC MOTOR QUANTITY
SUNX SF1-S40D SAFETY LIGHT CURTAIN EMITTER
THE SIEMON COMPANY FJ2-SCSC-MM-03 QUANTITY SC-SC MULTIMODE FIBER JUMPER
WESTINGHOUSE W210M1CFCY7 REVERSING STARTER SIZE 1 120VCOIL 10HP 27A 600V
WOOD'S E-TRAC AC INVERTER REPLACEMENT KEYBOARD AND INTERFACE BOARD PC132
SOLA 2. 24VDC 2.5AMP POWER SUPPLY QUANTITY
INDRAMAT DFF 1 B03 I/O MODULE BOARD CONTROLLER CARD
RELIANCE ELECTRIC 57409-D ANALOG INPUT MODULE 2-CHANNEL M/N 57C409
TRIPLETT 555 DISPLAY MODULE QUANTITY
TELEMECANIQUE XB2.MV104 REV.H2 RED PILOT LIGHT
OMRON S8EB TESTED 24VDC 2.2A POWER SUPPLY
ALLEN-BRADLEY 1494V-M40 SER.A CIRCUIT BREAKER OPERATING MECHANISM
ALLEN-BRADLEY 193-TAC16 SERIES B OVERLOAD RELAY
ALLEN BRADLEY 889D-F8AB-2 SER.A 8-PIN FEMALE STRAIGHT CONNECTOR
AB 1794-OF4I 1794OF4I ISOLATED ANALOG OUTPUT * QUANTITY
ALLEN-BRADLEY 2711P-T12C6D1 COLOR TOUCH WITH DH+/DH485/DHRIO MODULE
EDWARDS SIGNALING 877-G1 TESTED QUANTITY AUDIBLE SIGNAL APPLIANCE WEATHERPROOF
SIEMENS TI VAC OUTPUT MODULE * LNC
SHARP JAE D8-C3-J10 CONNECTOR CABLE
ETA 41-06-P30 1.2A CIRCUIT BREAKER QUANTITY
ENMET GAS DETECTION PANEL ISA 7W METHANE * CSA
GE FANUC 44A 8MB MEMORY CARD
CUTLER-HAMMER D64RPB100 DIGITAL GROUND FAULT RELAY 24-240V AC/DC QUANTITY
ALLEN BRADLEY SLC 500 1746-OV16 OUTPUT Ser.B *QUANTITY
ALLEN-BRADLEY SLC 500 1746-IB32 Ser.C DC SINK INPUT MODULE QUANTITY
