<Causes>

1. Interlock is set for the switch.
2. Touch switch position is not aligned.
3. When using a switch for changing screens (Function: Screen Change-over), the control device memory bit for changing over screen numbers by a switch is set (ON).

<Solutions>

1. When [Interlock] is configured on the [Switch] dialog, satisfy the configured requirements.
   
   Example: Turn ON bit 0 of $u100 to enable switching.
   
   
   
2. Check if touch switch position is not aligned. If it is not aligned, correct. For more information, refer to " Pressing the touch switch activates nothing or activates a position that deviates from the switch.".
   
   
3. Check bit 0 (the bit for changing over screen numbers by a switch) of the device memory specified at [System Setting] -> [Hardware Setting] -> [Control Area] -> [Control Device].
   If ON, turn it OFF.