Reflex function block: 1 threshold intervalometer
(Original Document)
About us
Role
This function is used to trigger an action after an interval th with a maximum precision of 0.1ms
Structure
The table below shows the block's different interfaces.
Name
Meaning
E
Intervalometer initialization input.
RESET 1
Outputs x and x Aux are set to 0.
ti
Time-base (0.1ms to 6.5535 s).
x
Intervalometer's physical output.
x Aux
Block's internal auxiliary output.
Illustration
Operation
This table describes the different operating phases of the intervalometer.
Phase
Description
1
On the rising edge of input E :
  • counter initialized to 0
  • input x changes to 0.
2
Counter increases at the rate of time-base ti.
3
When threshold th is reached, output x changes to 1.
4
On the falling edge of input E with output x at 1, output x Aux changes to 1.
Illustration
The illustration below shows the trend diagram of the intervalometer function block.