BENTLY NEVADA 3300/40-02-01-01-00-00

• 型号：3300/40-02-01-01-00-00


• 数量：3


• 制造商：　厦门兴锐达自动化设备有限公司


• 有效期：2019/10/10 0:00:00

BENTLY NEVADA 3300/40-02-01-01-00-00

BENTLY NEVADA 3300/40-02-01-01-00-00

BENTLY NEVADA 3300/40-02-01-01-00-00

控制系统的功用和管理系统的功用应严峻区分鸿沟

由于可编程序控制器组成的过程控制系统中的实时性要求很高，而网络通讯是容许暂时失 去通讯联系，往后自己能从头恢复，但是在从头恢复之前这一间隔时间可编程序控制器会处于失控。其他，在用多个可编程序控制器系统组成一个大系统时，关于主控制的要害指令，除了运用可编程序控制器本身的网络通讯传送它的信息外，最好有运用它的I/O点做成的硬件联 锁，特别是两者之间“急停”的处理；虽然两个系统都在本身的通讯扫描中彼此变换着“停 止”或“急停”指令，但因一方在急停缺点时现已间断工作，另一方并未收到已间断的信息 而照常工作，其后果难测。可编程序控制器控制系统要害的“急停”应先切除执行机构的电源，然后将其信号送入可编程序控制器，这样可获得设备安全保护的时间。

BENTLY NEVADA3500/15 127610-01S

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BENTLY NEVADABENTLY NEVADA 45095-02

BENTLY NEVADA72200-02-02-01-01-01-11

BENTLY NEVADA72301-03-04-01 BOARD

BENTLY NEVADA76683-90

BENTLY NEVADA78432-02

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BENTLY NEVADA81725-02

BENTLY NEVADA90201-02E

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