Cam Switch Block - Mitsubishi Electric MELSEC-L Series LD40PD01 User Manual

Cam switch block

Multi function
In a multi function counter block detail window, one cam switch block ("Cam_Switch") linked to a counter timer block is
arranged across the fourth and fifth sections. However, no cam switch block is arranged in a 16-bit multi function counter
block.
The values in the cam switch block are compared with "Count Value" in the counter timer block and the High/Low signals are
output.
Input
The following table shows the input of the cam switch block.
Variable name Data type
Input Word
*1 "Count Value" in the counter timer block and the cam switch block is linked automatically and the link cannot be deleted.
*2 The valid range is determined by the type of the multi function counter block arranged in the hardware logic outline window.
*3 When "User Address" is used, variability of 100ns or less occurs when the output turns to High or Low.
Linkable block Valid range
*1
Counter timer • -2147483648 to 2147483647
(32-bit signed counter)
• 0 to 4294967295 (32-bit
unsigned counter)
Description
Inputs the compare value of the counter timer block.
*2
When "User Address" of the step No. is not used,
set the refreshing cycle of the count value to 0.1μs
*2
or more. When "User Address" is used, set it to
*3
0.2μs or more.
9 CREATING A HARDWARE LOGIC
9.2 Multi Function Counter Block
9
161