Ecolab 202580 Manual De Instrucciones página 74

Device-specific information
6.1.2 PIN assignment - PROFIBUS-DP interface
Pin
3
5
6
8
6.2 Configuring the interface
The parameters of the PROFIBUS interface are set in the configuration:
Device menu -> Configuration -> PROFIBUS_DP
Configuration
PROFIBUS active
Device address
Data format
CAUTION!
Changing the device address via the bus is not supported by the device!
The baud rate is determined automatically (max. 12 MBit/s).
6.3 Diagnostic and status messages
If faults occur during communication with the device, appropriate error messages appear
on the display. In addition, the binary signal 'PROFIBUS error' is set to true for the
duration of the error.
This binary signal is selected via:
Binary selection -> Alarms & internal signals -> PROFIBUS error
When PROFIBUS errors occur, the wiring, device address, and operation of the
PROFIBUS master (PLC) must be checked.
6.3.1 Behavior when malfunctions occur
If a fault occurs during communication, all values transmitted prior to the fault are retained
in the device.
6.4 Timeframe for data processing
The device processes interface data cyclically in a timeframe of 250 ms.
417102396 Rev. 1-10.2019
Signal
RxD/TxD-P
DGND
VP
RxD/TxD-N
Value range
Yes
No
1 to 125
Big Endian Little Endian
36
Wire
Data wire B
-
-
Data wire A
Default Wert
no
1
Big Endian
Description
Activation of the
PROFIBUS interface
Specification of the
PROFIBUS user
Big Endian Little Endian,
Ä Chapter 5 'Data
see
format of the devices'
on page 32