110 AVENTICS | CANopen, CANopen sb | R412009415–BDL–001–AE
Appendix
Number of
Diagnostic Entries
Diagnostic Status
Diagnostic Data
Table 31:
Coding of the diagnosis bytes
Byte
Bit 0
0
1
Bit 1
0
1
Bit 2
0
1
Bit 3
0
1
Bit 4
0
1
Bit 5
0
1
Bit 6
0
1
Bit 7
0
1
1)
Approx. 110 ms after switched on, approx. 120 ms after switched off
13.7.3
Diagnostic information can be read via the index 2020 of
the OD. The bus coupler provides 1 byte for diagnosis.
Index 2020 subindex 0 contains the highest subindex.
Highest subindex = 3
Index 2020 subindex 1 contains the length of the
diagnostic data.
W
Length = 1, if diagnosis is active
W
Length = 0, if diagnosis is not active
Index 2020 subindex 2 contains the diagnostic status.
W
00hex, no diagnosis is active
W
01hex, diagnosis is available
Index 2020 subindex 3 allows the diagnosis bytes of the
bus coupler to be read out. These are coded in a byte as
in Tab. 31.
Meaning
No diagnosis
Faulty valve supply fuse or digital output (collective bit)
No diagnosis
Low load supply voltage U
No diagnosis
Low load supply voltage U
No diagnosis
Load supply U
missing
Q1
No diagnosis
Load supply U
missing
Q2
No diagnosis
No diagnosis
No diagnosis
Diagnostic information
1)
.
Q1
1)
Q2