Diagnostics; Diagnosis Reply (Applies Only To Cyclic Masters); Acyclic Diagnostics - Siemens Sitrans PROBE LU Instruction Manual

Diagnostics

All diagnostic information shown below is viewable via PDM.

Diagnosis reply (applies only to cyclic masters)

This is a response to a GET-DIAG message.
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 diagnostic and it is
eight bytes long. The last four bytes of the extended diagnostic message give the error
code shown below. (The same information is also available acyclically via the Diagnosis
Object.)

Acyclic Diagnostics

This consists of four bytes.
Hex values Byte
0x01000000
0x02000000
0x04000000
0x08000000
0
0x10000000
0X20000000
0X40000000
0x80000000
Page 28 SITRANS Probe LU (PROFIBUS PA) – INSTRUCTION MANUAL
Bit Description
0 Electronics failure
1 Mechanical failure
2 Motor Temperature too high
3 Electronics temperature too high
4 Memory error
5 Measurement failure
6 Device not initialized (no calibration)
7 Self calibration failed
Indication
a
class
R
R
R
R
R
R
R
R
7ML19985JB02