PFCL201C 20KN 可以用于将计数器的值重置为零

　　复位指令将占用任何计时器，并将其累积值设置回零。PFCL201C 20KN还可以用于将计数器的值重置为零，但这最好留给不同的文章范围来处理。

跨其他平台的计时器

尽管定时器很简单，但值得注意的是，在Studio 5000和另一个平台中，定时器的外观可能有很大的不同。在下图中，您可以看到在西门子PLC系统的TIA门户网站。我们有一个进入指令输入的梯级(IN ),就像使能位一样，还有一个预设时间(PT ),一个相当于ACC的经过时间(et ),最后是一个表示输出的Q。Q相当于Studio 5000的完成位。

PFCL201C 20KN在这条指令中，定时器定时(TT)并不存在，但可以由一系列简单的In为真，Q为假构成。

Productivity将许多功能组合到一个定时器指令中。它本质上是一个像RTO一样的保持定时器，但当当前时间小于、等于或大于菜单中的预设时间时，您可以选择自动复位和监控。它还有3个梯级输入，一个递增计数，一个递减计数，还有一个复位。Automation Direct通过许多指令来实现这一点，将功能结合起来，使一条指令可以执行无数的任务。

The reset command will occupy any timer and set its cumulative value back to zero. PFCL201C 20KN can also be used to reset the value of the counter to zero, but this is best left to different article scopes for processing.

Timers across other platforms

Although timers are simple, it is worth noting that the appearance of timers may differ significantly between Studio 5000 and another platform. In the figure below, you can see the TIA portal website of Siemens PLC system. We have a step (IN) that enters the instruction input, like an enable bit, a preset time (PT), an elapsed time equivalent to ACC (et), and finally a Q representing the output. Q is equivalent to the completion bit of Studio 5000.

PFCL201C 20KN In this instruction, the timer timing (TT) does not exist, but can be composed of a series of simple In values that are true and Q values that are false.

Productivity combines many functions into a timer instruction. It is essentially a hold timer like RTO, but when the current time is less than, equal to, or greater than the preset time in the menu, you can choose to automatically reset and monitor. It also has three cascading inputs, one for increasing count, one for decreasing count, and one for resetting. Automation Direct achieves this through many instructions, combining functions to enable a single instruction to perform countless tasks.