1756-A10 1756-A10
1756-A10 1756-A10
1756-A10 1756-A10
还有更进一步冗余的,采用三取一的设计,CPU、I/O模块、电源模块都冗余或其中的部分冗余。三套同时工作,最终输出取决于三者中的多数决定的结果。这可使系统出故障的机率几乎为零,做到万无一失。当然,这样的系统成本是很高的,只用于特别重要的场合,如铁路车站的道叉控制系统。
公司 名称:厦门泰尼电气有限公司
固定 电话:0592-6809819
联 系 人:张亮
传 真:0592-6890859【请备注“张亮”收】
商 务 Q Q: 2314094943
手 机:18030028083
18020729220
Q Q 邮 箱:2314094943@qq.com
需要可以联系绝对给你满意的价格
公司地址:厦门市海沧区海沧街道滨湖一里7号2008室
(2)软件方面:
PLC的工作方式为扫描加中断,这既可保证它能有序地工作,避免继电控制系统常出现的"冒险竞争",其控制结果总是确定的;而且又能应急处理急于处理的控制,保证了PLC对应急情况的及时响应,使PLC能可靠地工作。
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