Analogue threshold display
DP2200
7
4 Function
There are basically two modes in which the device can be operated:
•
As stand-alone device
The device compares the measured current value with the set parameters and switches its output
according to the selected parameters. This mode is without IO-Link functionality. The parameters
can, however, also be set with an IO-Link tool.
•
As IO-Link device
The device operates as an “analogue/IO-Link converter”. The evaluation of the measured current
value depends on the parameters which are set with IO-Link tools or a PLC via IO-Link
communication or directly on the device.
In some points parameter setting via IO-Link tools or PLC is different from parameter setting via
the menu (
Ò
Parameter setting).
4.1 Use as a stand-alone device without IO-Link
The device compares the measured current value with the set parameters and switches its output
according to the selected function (
Ò
Operation).
The measured value is shown on the alphanumerical display. The displayed value can be scaled by
the user (2-point scaling).
3
4
5
6
bar
4...20 mA
24 V DC
24 V DC
4...20 mA
M
OUT1
2
1
Fig. 2: Application example without IO-Link master
1:
Sensor with analogue output (e.g. pressure sensor)
2:
Threshold display
3:
Digital output
4:
Looping through an analogue input signal
5:
Switching amplifiers
6:
Relay output for switching of
electric motors,
valves etc.
4.2 Application as an IO-Link device
4.2.1 General information
The unit has an IO-Link communication interface which requires an IO-Link capable module (IO-Link
master).
The IO-Link interface allows direct access to the process and diagnostic data and enables setting of
the parameters of the unit during operation.
You will find further information about IO-Link and all the necessary information about the required IO-
Link hardware and software at:
