PROFINET
27
CP9xx_D00349_08_M_XXEN/02.2022
5.3 Data modules
The following data modules can be applied to the available 255 slots in the respective PLC or similar system.
The various data modules define which data is to be read via a slot.
For each data module, it is also possible to set in the respective PLC or similar system whether a process alarm
is to be generated. The process alarm is triggered when the respective assigned measuring channel reports an
active alarm. By default, this setting is disabled in the PLCs or similar systems.
5.4 Example of a data query
Example: Query measuring channel of an iso685-D
The iso685-D is connected to the COMTRAXX® device via BCOM. Measuring channel 3 (leakage capacitance C
e
)
is to be made available on slot 13 in order to be able to read it out via PROFINET.
In order for the required measuring channel to be read via PROFINET, it only has to be included in the device
assignment.
To do this, open the PROFINET device assignment of the COMTRAXX® device
Tools > Device management > Device assignment > PROFINET
and click on the "Add entry" button.
Select slot and channel in the pop-up dialogue and confirm with "Ok". The measuring channel now appears in
the table and can be accepted with the "Save changes" button. The configuration of the COMTRAXX® device is
now complete and the measuring channel can be read on slot 13.
Data module Format Comment/Unit
Measured value Float32
Measured value of the measuring channel as floating
point number (IEEE754) with 32 bits
Measuring channel structure
(Complete measuring channel as a
structure with 26 bytes)
Float32
Measured value of the measuring channel as floating
point number with 32 bits
UINT64 Time stamp in ms as 64-bit unsigned integer
UINT64 Alarm time stamp in ms as 64-bit unsigned integer
UINT8 Alarm state as 8-bit unsigned integer
UINT8 Unit as 8-bit unsigned integer
UINT8 Value range as 8-bit unsigned integer
UINT8 Test state as 8-bit unsigned integer
UINT16 Description as 16-bit unsigned integer
Alarm state UINT8
Alarm state as 8-bit unsigned integer
0: No alarm
1: Prewarning
2: Error
3: Reserved
4: Warning
5: Alarm
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