Diagnostics; Diagnosis Reply (Available Cyclically); Diagnosis Object (Available Cyclically Or Acyclically) - Siemens SITRANS LR260 Operating Instructions Manual
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Also See for SITRANS LR260:
- Quick start manual (225 pages) ,
- Operating instructions manual (184 pages) ,
- Application manual (2 pages)
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Values in hex notation
0x10...0x1C
0x04...0x07
0x1C...0x1F
a)
This could happen when a firmware download has been done, but a system reset has not
been done. This could also happen if the function blocks are not configured properly
using the handheld programmer, PDM or acyclic services.
Diagnostics
All diagnostic information shown below is viewable via PDM.
Diagnosis reply (available cyclically)
During DPV0 data exchange, the PROFIBUS PA slave will notify the Master when a
serious error occurs. The Master will then send a Diagnosis request. The reply to this
request is normally logged in the PLC and is referred to as the "Hex values."
The reply may contain two parts. The first part is 6 bytes long and is defined by the
PROFIBUS standard. If there is a second part, it is called the 'extended cyclic diagnosis'
and it is 8 bytes long. The last 4 bytes of the extended diagnostic message give the error
code shown. (See
Diagnosis
on page 128.)
The same infomration is also available acyclically via the Diagnosis Object.
Cyclic Diagnosis (6 bytes)
Diagnosis Object (available cyclically or acyclically)
This consists of four bytes.
In PROFIBUS PA there are two possible types of Acyclic Diagnostics:
•
Extended Mode Diagnosis
•
Condensed Mode Diagnosis
You can choose which of these will be returned, by enabling or disabling Condensed
Status Mode (COND. STAT. MODE) (3.6. 1 .) on page 82. The default setting is Condensed
Status enabled: Extended Mode Diagnosis will be returned, and the following codes will
be used.
A5E32337685
SITRANS LR260 (PROFIBUS PA) – OPERATING INSTRUCTIONS
Status Codes for Bad Quality
Description
The LOE timer has expired: this could be caused by LOE or by
a sensor malfunction: value is BAD.
There is an error in the configuration of the function blocks in
PROFIBUS PA
The function block, or the transducer block, has been placed
out of service.
Extended Mode Diagnosis
Extended Cyclic Diagnosis (8 bytes)
a)
.
Condensed Mode
on page 128 and
Diagnosis Object
(last 4 bytes)
Extended Mode
Condensed
Diagnosis
Mode Diagnosis
Page 127
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