关于PLC的RR、RS指令

请教各位，三菱PLC中有一个RR和RS指令，本人不知道它的用法，想请教各位在梯形图上如何使用。谢谢

以上是由下面此名话引起的：当计算机欲将PLC主机设置为RUB或STOP时，可以采用RR（Remote RUN）及RS（Remote Stop）作为写入指令，同时此指令写入后，可以通过主机的RUN\Stop开关来解除。

RR和RS好象是远控指令，具体用法不清楚。

感谢答复，懂了。谢谢

这是本人对上面做的程序：（VB测试成功，PLC硬件需在RUN状态）
Option Explicit
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Dim in_buffer As String

Private Sub Command1_Click() '要求PLC停止
   MSComm1.Output = Chr(5) + "00FFRS0C1"
   Call stx_receive(in_buffer)
   Text1.Text = in_buffer
End Sub

Private Sub Command2_Click() '要求PLC启动
   MSComm1.Output = Chr(5) + "00FFRR0C0"
   Call stx_receive(in_buffer)
   Text2.Text = in_buffer
   in_buffer = ""
End Sub

Private Sub Command3_Click()'重启（先停后开，笨方法）
   MSComm1.Output = Chr(5) + "00FFRS0C1"
   Call stx_receive(in_buffer)
   Text1.Text = in_buffer
   in_buffer = ""
   
   Sleep 2000

   MSComm1.Output = Chr(5) + "00FFRR0C0"
   Call stx_receive(in_buffer)
   Text1.Text = in_buffer
   in_buffer = ""
End Sub

Private Sub Form_Load()
   MSComm1.CommPort = 1
   MSComm1.Settings = "9600,n,7,1"
   MSComm1.PortOpen = True
End Sub

Public Sub stx_receive(in_buffer)
   Dim delay_time As Double
   Dim delay_start As Double
   Dim delay_chk As Double
   delay_time = 0.1
   delay_start = Timer
   Do
       delay_chk = delay_start + delay_time
   Loop Until Timer > delay_chk
   in_buffer = MSComm1.Input
   If Left(in_buffer, 1) = Chr(6) Then
       in_buffer = "OK"
     Else
       in_buffer = "NO-OK"
   End If
   MSComm1.InBufferCount = 0
End Sub