Index (hex)
Monitored measurand
4436 (0x1154)
Shock
4533 (0x1185)
Vibration analysis in time range
4574 (0x11DE) - 4577
(0x11E1)
Vibration analysis in frequency range
The alarm flags can also be mapped into the process data of the sensor. Details are
described in
. The alarms are deactivated by setting the limit values to an
invalid value (see IO-Link supplementary sheet, typically -1). All active alarm bits can be
reset as a whole using the 229 (i.e. writing value 229 in Index 2). An implicit reset of
alarms also occurs when the associated limit values are changed, for vibration alarms
also when vibration parameters are changed.
NOTE
By default, alarm bits remain set and must always be actively reset via
Standard Com‐
mand
229.
In many applications, it is desirable that short-term outliers and/or one-time events,
which may result from accidentally bumping into a piece of equipment, for example, do
not directly trigger an alarm. This can be achieved by configuring the alarm behavior
(alarm delay time) accordingly. Likewise, the alarms can be reset automatically when
the machines are running again in normal condition after a short malfunction (alarm
reset time).
Alarm delay time (Subindex 1)
The alarm delay defines the minimum time for which a set limit value must be
exceeded before the alarm is triggered. Depending on the moment when the limit
value was violated for the first time, the alarm is delayed by this time. In
, this
value was set to 2,000 ms. Since the indication value was not high enough above the
limit value the first time it was exceeded, no alarm is triggered. The second time the
value exceeds the threshold for more than 2,000 ms, the alarm is triggered. A 0 in this
subindex deactivates the alarm delay time and the alarms are triggered immediately
after the limit value is exceeded.
OPERATION
9
8028041/2022-08-16 | SICK
O P E R A T I N G I N S T R U C T I O N S | MPB10
29
Subject to change without notice
