IEC61131-3是一个标准，依据它，PLC采用公用语言AWL(指令表)、FUB(功能块)、ST(结构文本)和KOP(接触面contact plan)编程。因此若你没有编程知识也能在短期内做出应用。不同语言间的交叉翻译有助于以好的编程形式处理单个的任务。由SYS公司提供的编程环境OpenPCS是遵从IEC61131-3的，它统一了重要的工具，如编辑器、编译器、调试器、配置工具、离线模拟器等，是为了制作小型结构的标准控制或模块设备以及用户专用控制。学习费用很低而且能够连接现有的C或汇编程序。PLC程序通过RS232接口、CANopen现场总线或TCP/IP下载到目标硬件。作为运行环境，我们提供一个能够使用不同硬件平台的解释程序解决方案。也可以选择为所选定的处理器系列产生目标代码。
OPC接口
Square D 20 amp circuit breaker QOU220
Square D QO 2 Pole 100A 100 AMP Main Breaker Q12100TF
Square D QO 2 Pole 100A 100 AMP Breaker Q1L2100
Square D QO Double 2 Pole 15A 15 Amp Breaker QO215 U
SQUARE D 04136 CLASS CTL PANELBOARD
SQUARE D HOM250GFI CIRCUIT BRAKER HOME LINE GFI NEW
Square D QO 3 Pole 20A 120 Amp Breaker QO320
SQUARE D 30 AMP 2 POLE SNAP-IN CIRCUIT BREAKER QO230
Square D Circuit Breaker FAL32070 1212 70A Amp NEW NIB
Square D 200 amp circuit breaker LE36200LS Grey lab NIB
FAL12015 15A Square D 1pl Circuit Breaker 15 amp .. NIB
Square D QO 2 Pole 60A 60 Amp Sub-Feed Lugs QO200
Square D EDB24020 Circuit Breaker 20A 2 Pole 277V NIB
TELEMANIQUE SQUARE D INDUSTRIAL CONTROL RELAY CA2KN31G7
SQUARE D QO-200TR 60 AMP BREAKER SWITCH ENCLOSED 3R
SQUARE D EHB34060 3P 60A 277/480V CIRCUIT BREAKER
EHB34100 SQUARE D CIRCUIT BREAKER 3p 100a 480v * NEW *
BRAND NEW SQUARE D CIRCUIT BREAKER EDB34060
KAL36250 BRAND NEW SQUARE D CIRCUIT BREAKER
KAL36250 BRAND NEW SQUARE D CIRCUIT BREAKER
Square D EDB34030 3pole 30amp 480v circuit breaker New
Square D EDB34020 3pole 20amp 480v circuit breaker New
Square D EDB34100 3pole 100amp 480v circuit breaker New
Square D KC34150 3pole 150amp 480v circuit breaker new
Square D KC34200 3pole 200amp 480v circuit breaker new
Square D KC34225 3pole 225amp 480v circuit breaker new
EHB34100 SQUARE D CIRCUIT BREAKER 3p 100a 480v
EHB34030 SQUARE D CIRCUIT BREAKER 3p 30a 480v
EHB34040 SQUARE D CIRCUIT BREAKER 3p 40a 480v
Square D FA34020 3p 20amp 480v circuit breaker ILine
Square D FA34080 3p 80amp 480v circuit breaker ILine
SQUARE D EDB34020 20A 480V CIRCUIT BREAKER EDB EGB EJB
Square D KA36200 3p 200amp 480v circuit breaker ILine
Square D KA36200 3p 200amp 480v circuit breaker ILine
SQUARE D CIRCUIT BREAKER 3P 20A 480V EHB34020
SQUARE D EDB34035 3P 35AMP 277/480V CIRCUIT BREAKER,NEW
