Operating Hours Counter - Balluff BOS 21M-UUI-RP30-S4 Betriebsanleitung

Photoelectric Sensors
Multi-function sensor with additional functions
BOS 21M-UUI-RP30-S4
Counter function (continued)
Counter Mode AUTO (automatic Reset)
After the preselected value has been reached the counter
starts counting at counter value 1 with the next detection
of an object and the counter output is reset automatically.
Manual resetting is always possible. The configuration of
Pin 2 is not changed in Counter Mode AUTO.
Count pulses
Count Value
Counter output
on
off
Fig. 12: Preselect counter with automatic reset
Frequency monitor
In IO-Link mode parameter 0x00B6 (CounterMode SPEED)
can be used to configure the frequency monitor.
The frequency monitor monitors the system for over- and
under-frequency. A switch-on and reset value can be
configured for both cases. The minimum distance between
the switch-on and reset value is 10% of the switch-on
value.
As long as the measured frequency is within the set range,
the process data bit OK is set. When the measured
frequency exceeds the switching threshold
UpperLimitHigh, the process data bit is set to Too High.
When the measured frequency falls below the switching
threshold LowerLimitLow, the process data bit is set to
Too Low.
In IO-Link mode the absolutely measured frequency is
output in the process data field CountValue.
As soon as the frequency monitor is enabled, Pin 4 in SIO
mode is assigned to the process data bit OK (not during
the startup delay time, always normally open, output type
remains configurable).
10 english
Switch Counter Limit
Frequency monitor (continued)
Imp/min
Over-frequency
too high
Switch-on value = UpperLimitHigh
Reset value = UpperLimitLow
Reset value = LowerLimitHigh
Switch-on value = LowerLimitLow
Under-frequency
too low
Startup delay
1
OK
0
1
too high
0
1
too low
0
Pin 4
1
(SIO mode)
0
Fig. 13: Frequency monitor
Startup delay
When the count function is enabled a startup delay
(Parameter 0x00B6 StartupDelay) can be configured. The
time delay can be set between 0....255 seconds and
begins when the supply voltage is applied to the sensor.
The count function or frequency measurement begins after
this time has elapsed.
During the startup delay the counter output in SIO mode
(Pin 4) is high-impedance when the count function is
enabled. If the frequency monitor is enabled, the counter
output in SIO mode (Pin 4) is switched on.
Pin 2 is unaffected by the startup delay and has its
configured function from the beginning.
While the startup delay time is running, the process data
bits OK, Too Low and Too High are inactive in IO-Link
mode and the process data field CountValue is 0.
Key lock
The setter can be enabled or disabled in IO-Link mode
using parameter 0x000C Device Access Locks, Bit 3. This
setting also applies in SIO mode.

Operating hours counter

There are two operating hours counters available
(parameter 0x0057). The default setting is 0. Only
completed hours are counted. Counter values are lost in
applications where sensors are turned on and off only as
needed. Using the system command Reset Operating
Hours (value 0xA5) the individual operating hours counter
Operating Hours Individual can be reset. Operating Hours
cannot be reset.
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