存储容量与速度尽管国外各厂家的PLC产品大体相同
用户程序又称为应用程序，是用户为完成某一特定 的控制任务而利用PLC的编程语言编制的程序。 来自PLC之家。
用户程序通过编程器输入到PLC的用户程序存储器中。
可编程控制器是通过程序对系统进行控制的，所以各种机型的PLC都有自己的编程语言。
PLC的编程语言有多种，如梯形图、语句表、逻辑功能图、逻辑方程式等。下面介绍常用的梯形图和语句表编程语言。
Dickson TH4-24F Chart Recorder Temperature Humidity Meter
PepperL+Fuchs, KFD2-STC4-EX2, Smart Transmitter
NSK RS0608FN001 MOTOR
Square D, 9070TF150D1, Industrial Control Transformer 150VA v
DANAHER P21NSXC-LNN-NS-04 (UNCLEAN) MOTOR
Ashcroft 45 1279AS 04L XLL Pressure Gauge 4-1/2" Brass Kit 100psi Duragauge
Cutler-Hammer, E57SAL18T11E, Proximity Sensor Sensor 10-30VDC Eaton
SMB 3ALHPE3 MOTOR
PITTMAN 9434K350 MOTOR
OMRON R88M-U10030L-G11B CP-16A-11-J203A-SP (BROKEN) MOTOR
TCM, 42X60X9TC, Oil Seal Double Lip Spring 42mm x 60mm x 9mm
Square D N250MJ NF Main Bteaker Kit
NIBCO Chemtrol U45BC V 1 1/2" Check Valve 1.5" one way PVC Plastic
Banner, PD45VP6C100Q, 63008, Convergent Laser Sensor Sensor Photoelectric
8DP080A010ANP02 3253 Filter
LUST CDA32.008,C1,4,HF CONTROLLER
Simpson, F Power Supply
PANASONIC M8MA25GB4Y (UNCLEAN) MOTOR
KEYENCE KV-U3 CONTROLLER
DTCR50824 Optional Motoweld Touch Sense PC Board MW-500 Motoman
Chicago Rawhide, 19360, Oil Seal
Telemecanique, LC1D38BL, Contactor Starter Relay Square D 50A
Allen Bradley 800MR-A9B Pushbutton 300VAC Max 10 Amp Max Ser A 8OOMR-A98
Numatics, 082SS43AM Solenoid Valve 150psig-air
GE, CR120B04422, General Electric Industrial Relay 10A 600V
Dayton Electric, 4WT42A, AC Axial Fan
Allen Bradley, N14, Overload Heating Heater Element
APPLIED SI5580 STEP MOTOR DRIVER
ORIENTAL PK566-NBC VEXTA STEPPING MOTOR
IFM Efector, IE5260, IEA3002BBPKG, Proximity Sensor Switch
Euchner, NZ1VZ-528E-M, Safety Switch Interlock Lock
插入卸下的CPU模块和填充模块