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Reference material
5.3 Special functions
LOGO!Soft Comfort Online Help
Operating Instructions, 11/2017
273
5.3.1.15
Stopwatch (0BA7 and later versions only)
Short description
The stopwatch records the time elapsed since it was enabled.
Connection
Description
Input
En
En (Enable) is the monitoring input. LOGO! sets the current elapsed time to 0 and
begins counting elapsed time when En transitions from 0 to 1. When En transitions
from 1 to 0, the elapsed time is frozen.
Input
Lap
A positive edge (0 to 1 transition) at input
Lap
pauses the stopwatch, and sets
output to lap time. A negative edge (1 to 0 transition) at input
Lap
resumes the
stopwatch, and set the output to current elapsed time.
Input R
A signal at input R (Reset) clears the current elapsed time and lap time.
Parameter Time base for elapsed time, which you can set to hours, minutes, seconds, or
1/100ths of seconds.
Output
AQ
The output
AQ
outputs value of the current elapsed time when it is a negative edge
(1 to 0 transition) at the input
Lap
, and outputs value of the Lap time when it is a
positive edge (0 to 1 transition) at the input
Lap
.
A positive edge (0 to 1 transition) resets the value at output AQ to 0.
Parameters Time base
You can configure the time base for the analog output:
The time base for the elapsed time can be in hours, minutes, seconds, or 1/100ths of
seconds (units of 10 milliseconds). The smallest time base, and therefore the resolution, is
10 milliseconds, or 1/100ths of seconds.
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