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5. Commissioning, operation
Delay times (0 ... 65 s) (configurable via IO-Link)
This makes it possible to filter out unwanted pressure spikes
of a short duration or a high frequency.
The pressure must be present for at least a certain preset
time for the output to switch on. The output does not immedi-
ately change its status when it reaches the switching event
(SP), but rather only after the preset delay time (DS).
The output only switches back when the system pressure
has fallen down to the reset point (PR) and stays at or below
the reset point (RP) for at least the preset delay time (DR).
If the switching event is no longer present after the delay
time, the switch output does not change.
5.9 Damping function (0 ... 65 s) (configurable via IO-Link)
With this, the time span between a pressure change and the change of the switching
status can be set.
5.10 Zero point setting
A zero point offset can be reset with the 0SET parameter via IO-Link. Only carry out zero
point setting for gauge and vacuum pressure measuring ranges at the start of the measu-
ring range.
Carry out the zero point setting of absolute pressure measuring ranges at
0 bar absolute (vacuum). Since appropriate references are required for this,
we recommend that this is only carried out by the manufacturer.
5.11 Description of the IO-Link functionality
IO-Link specification: Version 1.1
IO-Link is a point-to-point connection for the communication of the instrument with an
IO-Link master. The IO-Link communication allows you to transmit the pressure and
switch point status in digital form. Furthermore, IO-Link offers the possibility to configure,
control and monitor the system status using the integrated diagnostic function. Thanks to
a standardised device description file (IODD), the software required for this can be freely
selected by the user independently of manufacturer.
A detailed description of the IO-Link functionality and the device description file (IODD)
can be found online on the product details page at www.wika.com.
5.12 Commissioning
During the commissioning process pressure surges must be avoided at all costs. Open
the shut-off valves slowly.
WIKA operating instructions, model DSSA11SA
Fig.: Delay times
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