Timers - ABB ACSM1 Firmware Manual

328

Timers

MONO
(10057)
Illustration
Execution time
Operation
Inputs
Outputs
Standard function blocks
1.46 µs
The output (O) is set to 1 and the timer is started, if the input (I) is set to 1. The output is
reset to 0 when the time defined by the time pulse input (TP) has elapsed. Elapsed time
(TE) count starts when the output is set to 1 and stops when the output is set to 0.
If RTG is 0, a new input pulse during the time defined by TP has no effect on the
function. The function can be restarted only after the time defined by TP has elapsed.
If RTG is 1, a new input pulse during the time defined by TP restarts the timer and sets
the elapsed time (TE) to 0.
Example 1: MONO is not re-triggable, i.e. RTG = 0.
I
O
4 s
0 1 2 3
TE = 0 s
TE = 0 s
Example 2: MONO is re-triggable, i.e. RTG = 1.
I
O
0 1 2 3
*
* TE is set to 0.
TE = 0 s
Re-trigger input (RTG): Boolean
Time pulse input (TP): DINT (1 = µs)
Input (I): Boolean
Output (O): Boolean
Time elapsed output (TE): DINT (1 = 1 µs)
RTG = 0, TP = 4 s
4 s
4 5 6 7 8 9
TE = 0 s
TE = 4 s
RTG = 1, TP = 2 s
2 s
4 5 6 7 8 9
* * *
TE = 2 s
t / s
10
TE = 4 s
t / s
10