Siemens SIRIUS ACT 3SU1 System Manual page 345

Switch-on duration input
Description
A value at the input is read in this mode. Signal changes are monitored. The value at the
input is monitored. If the input is switched on for 1000 ms, the actual switch-on duration
counter is incremented. This increase represents the total period of time during which the
input is switched on and may include several pulses that are shorter than 1000 ms. The
actual value of this counter is compared to the parameterized time period. If the actual
switch-on duration counter reaches this value, the switch-on duration status is set to
"threshold reached". If the actual switch-on duration counter reaches 4 294 967 295
(0xFFFFFFF [hex]), counting ceases and the status for the switch-on duration is set to
"expired". If the actual switch-on duration count is shorter than the parameterized time period
and less than 4 294 967 295 (0xFFFFFFF [hex]), the status for the switch-on duration is set
to "active".
When the switch-on duration input mode is deselected, the status for the switch-on duration
is set to "deactivated". The actual switch-on duration count is stored in a buffer memory and
is available as the start value for continued counting when the switch-on duration input mode
is selected again. When the device is switched off, the actual switch-on duration count is
transferred to the non-volatile memory of the device so that it can be retrieved when the
device is next switched on.
The actual switch-on duration count can be reset to zero by the following methods:
● Change the parameterized time period.
● Switch over from the switch-on duration input mode to the switch-on duration output
mode, and vice versa.
● Use the standard command "Restore Factory Setting".
● Use the standard command "Application Reset".
● Use the standard command "Reset switch-on duration at pin x" (x refers to the number of
the corresponding IO).
● Use the standard command "Reset switch-on duration at pins 1-8".
Parameters
● Input delay
● Threshold switch-on duration
● Inverting input
SIRIUS ACT 3SU1 pushbuttons and signaling devices
System Manual, 08/2018, A5E03457306020A/RS-AK/010
IO-Link 3SU14
12.3 Electronic modules for IO-Link
345