7.3
Wieland Electric | BA000349 | 05.2007
7 |
Diagnostics (and Fault Removal)
The PROFIBUS interface of the podis MOT reports all occurring errors to the controller via the
diagnostics channel of PROFIBUS-DP. Within the controller, these error messages are analyzed
via corresponding system functions (e.g. for S7-400 via diagnostics alarm OB 82/SFC13).
The following table shows the structure of the diagnostics data that are composed of the
diagnostics information according to DIN EN 61158-2 and (in for MOVIMOT errors) the device-
specific diagnostics data.
Byte no. Meaning
0
Station status 1
DIN EN 61158.1
1
Station status 2
DIN EN 61158.1
2
Station status 3
DIN EN 61158.1
3
DP master address
DIN EN 61158.1
4
Ident number "High 08"
DIN EN 61158.1
5
Ident number "Low FD"
DIN EN 61158.1
6
Header
Application-specific diagnostics
7
Error code 7
Application-specific diagnostics
The coding of bytes 0 to 3 is defined in DIN EN 61158.1. Byte 4 and 5 generally contain the
constant meanings listed in the table.
If the extended PROFIBUS diagnostics was enabled in the GSD file, a connection inter-
ruption to MOVIMOT results in error code 0x5B to be transferred to the controller in byte 7
(diagnostics byte).
Since all the fault information is also transferred directly to the controller via the status words
of the process input data, triggering the diagnostics alarm by a MOVIMOT fault can be deacti-
vated via the user-specific parameters of PROFIBUS-DP.
NOTICE
This mechanism merely deactivates the triggering of a diagnostics alarm due to a
MOVIMOT fault. Diagnostics alarms can, however, be triggered at any time in the
PROFIBUS-DP master by the PROFIBUS-DP system. The corresponding organizational
modules (e.g. OB82 for S7-400) should generally be set up in the controller.
During the project planning of a PROFIBUS-DP slave, additional user-specific parameters that
are transferred to the slave during the initialization of the PROFIBUS-DP can be defined in
every PROFIBUS-DP master.
Ten user-specific parameter data are reserved for the MFP interface. Byte 1 is assigned the
following function:
Parameter data (hex)
Function
00, 00, 00, 00, 00, 00, 00, 00, 00, 00
Diagnostics alarms are also generated in case of an
error
00, 01, 00, 00, 00, 00, 00, 00, 00, 00
Diagnostics alarms are not generated in case of an
error
PROFIBUS-DP
slave diagno-
stics data
PROFIBUS-DP
slave diagno-
stics data
Switching
alarms on and
off
Switching
alarms on and
off
Project planning
examples
Project planning
examples
Содержание podis MOT FP C
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Страница 24: ...3 Wieland Electric BA000349 05 2007 Mechanical Installation Assembly 3...
Страница 44: ...5 Wieland Electric BA000349 05 2007 Commissioning 5...
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