11.3
Grouping and overview of the diagnostic messages
The diagnostic messages are grouped according to their cause.
This grouping is visible in the corresponding overview:
–
Grouped overview:
Main group | Sub-group | Error number
e.g. 02 | 01 | 0022
–
Ungrouped overview:
Diagnostic number
e.g. 33619990
The diagnostic messages are mapped within the Interfaces corresponding profiles of the used Host-
Systeme and device profiles. If the Host-System or device profile only allows 16 bit, only the unique
error number is transferred (e.g. 22).
The diagnostic number of the ungrouped overview is determined from the grouped overview as fol-
lows:
1. Combine main group, sub-group and error number byte by byte as a hexadecimal 4-byte value:
–
Main group = byte 4
–
Sub-group = byte 3
–
Error number = byte 2 and 1
2. The resultant hexadecimal 4-byte number displayed as a decimal number equals the diagnostic
number in the ungrouped overview.
The diagnostic categories listed are used in several products
è
Tab. 12 Grouping of the diagnostic messages. Depending on the specific product used, only parts
of this complete list will be used.
Main group
Sub-group
1
Short circuit
2
I²t
1
Current
3
Braking resistor
1
Supply
2
Intermediate circuit
3
Principal voltage
4
Encoder supply
2
Voltage
5
Battery
1
Device
2
Output stage
3
Temperature
3
Motor
4
Pressure
0
No allocation
Diagnostics
22
Festo — CPX-AP — 2019-06
