Status Codes for Uncertain Quality
Values in hex notation | Description |
|
|
0x4B | Value is a substituted value (normally used in |
0x4C/0x4F | Initial value. |
0x47 | Last usable value. |
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 | Bit | Description | Indication | |
classa | |||||
|
|
|
| ||
0x01000000 |
| 0 | Electronics failure | R | |
0x02000000 |
| 1 | Mechanical failure | R | |
0x04000000 |
| 2 | Motor Temperature too high | R | |
0x08000000 | 0 | 3 | Electronics temperature too high | R | |
0x10000000 | 4 | Memory error | R | ||
| |||||
0X20000000 |
| 5 | Measurement failure | R | |
0X40000000 |
| 6 | Device not initialized (no calibration) | R | |
0x80000000 |
| 7 | Self calibration failed | R |
a.R indicates the message remains active as long as the reason for the message exists.
A indicates the message will automatically reset after 10 seconds
H: Communication PA
7ML19985JM01 SITRANS LR 460 (PROFIBUS PA) – INSTRUCTION MANUAL | Page |
