6ES7331-7KF02-0AB0
6ES7331-7KF02-0AB0
--------------**厦门莫格电气自动化有限公司**----------
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PLC死机原因解析摘要：引起PLC死机的原因很多，软硬件的错误都可能引起死机。本文详细介绍了PLC死机的软硬件方面原因。引起PLC死机的原因很多，软硬件的错误都可能引起死机。1、硬件方面（1）I/O窜电，PLC自动侦测到I/O错误，进入STOP模式。（2）I/O损坏，程序运行到需要该I/O的反馈信号，不能向下执行指令。（3）扩展模块(功能型，如A/D)线路干扰或开路等。（4）电源部分有干扰或故障。（5）PLC的连接模块及地址分配模块出故障。（6）电缆引起的故障。2、软件方面（1）触发了死循环。（2）程序改写了系统参数区的内容，却没有初始化部分。（3）保护程序启动：硬件保护、限制使用时间(针对货款收回)（4）数据溢出，步长过大、看门狗(可修改DOG时间)动作。
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SIERRACIN 5A12A DC POWER SUPPLY REPAIRED
MATSUSHITA 5VDC 20A POWER SUPPLY ETU-5G200L2 104500
TOGI * TERMINAL BLOCK * PCN-4F40
ALLEN BRADLEY MINI-PLC-2/17 PROCESSOR W/POWER SUPPLY 1772-LWP D
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OMRON 24VDC 7A POWER SUPPLY S82F-1524 *BROKEN PLASTIC*
HEWLETT PACKARD Q1338A BLACK COMPATIBLE LASER CARTRIDGE FOR USE IN HP NIB
