TRICON 2658
工作速度是指PLC的CPU执行指令的速度及对急需处理的输入信号的响应速度。工作速度是PLC工作的基础。速度高了,才可能通过运行程序实现控制,才可能不断扩大控制规模,才可能发挥PLC的多种多样的作用。
PLC的指令是很多的。不同的PLC。指令的条数也不同。少的几十条,多的几百条。指令不同,执行的时间也不同。但各种PLC总有一些基本指令,而且各种的PLC都有这些基本指令,故常以执行一条基本指令的时间来衡量这个速度。这个时间当然越短越好,已从微秒级缩短到零点微秒级。并随着微处理器技术的进步,这个时间还在缩短。
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Johnson Controls D 3153-3 Damper Actuator with 5 to 10
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Telemecanique Contactor Thermal Overload LR7-E005 0.
Telemecanique Contactor Thermal Overload LR7-E006 1
Telemecanique Contactor Thermal Overload LR7-E007 1.
Telemecanique Contactor Thermal Overload LR7-E008 2.