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1.使用加计数指令，递增输出CV的值。
2.每当输入信号CU的状态从“0”变为“1”（即信号上升沿），就会执行该指令，同时输出CV的当前计数器值加1。计数器值会在每次检测到信号上升沿时递增，直到达到输出CV所指定数据类型的上限。一旦达到上限，输入信号CU的状态将不再影响该指令的执行。简而言之，该指令会持续检测信号上升沿并递增输出CV的值，直到达到指定的上限。
3.Q输出的信号状态由参数PV决定。如果当前计数器值大于或等于参数PV的值，则将输出Q的信号状态置位为“1”。在其它任何情况下，输出Q的信号状态均为“0”。
4.当输入R的信号状态变为高电平（即“1”）时，输出CV的值会被重置为低电平（即“0”）。在此之后，只要输入R保持高电平状态，无论输入CU的信号状态如何，输出CV都将保持不变。
1. Use the add count command to increment the output CV value.
2. Whenever the state of the input signal CU changes from "0" to "1" (i.e. the rising edge of the signal), the instruction will be executed, and the current counter value of the output CV will be increased by 1. The counter value will increase every time the rising edge of the signal is detected, until it reaches the upper limit of the data type specified by the output CV. Once the upper limit is reached, the state of the input signal CU will no longer affect the execution of the instruction. In short, this instruction will continuously detect the rising edge of the signal and increase the output CV value until it reaches the specified upper limit.
The signal state output by Q is determined by the parameter PV. If the current counter value is greater than or equal to the value of parameter PV, set the signal status of output Q to "1". In any other case, the signal state of output Q is "0".
When the signal state of input R changes to high level (i.e. "1"), the value of output CV will be reset to low level (i.e. "0"). Afterwards, as long as the input R remains in a high level state, regardless of the signal state of the input CU, the output CV will remain unchanged.
