Bus Coupler Diagnostic Data; Structure Of The Diagnostic Data; Reading Out The Bus Coupler Diagnostic Data - Emerson AES Serie Systembeschreibung

and outputs. The bus coupler tries to re-initialize the system. It sends the di-
agnostic message that the backplane is attempting re-initialization.
– If the initialization is successful, the bus coupler resumes its normal opera-
tion. The error message is canceled and the IO/DIAG LED is illuminated in
green.
– If the initialization is not successful (e.g. due to the connection of new
modules to the backplane or a defective backplane), the bus coupler con-
tinues to send the diagnostic message to the controller that the backplane
is attempting re-initialization, and the initialization is restarted. LED IO/
DIAG continues to flash red.
Option 2 (bit 2 of parameter byte = 1)
• For temporary backplane malfunctions, the response is identical to option 1.
• In the event of a sustained backplane malfunction, the bus coupler sends an
error message to the controller and the IO/DIAG LED flashes red. The bus cou-
pler simultaneously resets all valves and outputs. An initialization of the sys-
tem is not started. The bus coupler must be restarted manually (power reset)
in order to return it to normal mode.

5.6 Bus Coupler Diagnostic Data

5.6.1 Structure of the diagnostic data

The bus coupler sends 8 bytes of diagnostic data, distributed across two input ob-
jects, that are appended to the module objects. A valve system consisting of a
bus coupler and a module with input data thus has three input objects. A valve
system consisting of a bus coupler and a module without input data has two in-
put objects.
The 8 bytes of diagnostic data contain
• 2 bytes of diagnostic data for the bus coupler and
• 6 bytes of group diagnostic data for the modules.
The diagnostic data is organized as shown in the following table.
Table 12: Diagnostic data appended to input data
Byte no. Bit Meaning
no.
Diagnosis ob- Bit 0 Actuator voltage < 21.6 V (UA-ON)
ject 1, byte 0
Bit 1 Actuator voltage < UA-OFF
Bit 2 Electronics power supply < 18 V
Bit 3 Electronics power supply < 10 V
Bit 4 Hardware error
Bit 5 Reserved
Bit 6 Reserved
Bit 7 Reserved
Diagnosis ob- Bit 0 The backplane of the valve zone is-
ject 1, byte 1 sues a warning.
Bit 1 The backplane of the valve zone is-
sues an error.
Bit 2 The backplane of the valve zone at-
tempts a re-initialization.
Bit 3 Reserved
Bit 4 The backplane of the I/O zone issues a
warning.
Bit 5 The backplane of the I/O zone issues
an error.
Bit 6 The backplane of the I/O zone at-
tempts a re-initialization.
Bit 7 Reserved
Diagnosis ob- Bit 0 Group diagnosis, module 1
ject 1, byte 2
Bit 1 Group diagnosis, module 2
Bit 2 Group diagnosis, module 3
Bit 3 Group diagnosis, module 4
Bit 4 Group diagnosis, module 5
Bit 5 Group diagnosis, module 6
Bit 6 Group diagnosis, module 7
Bit 7 Group diagnosis, module 8
Diagnosis ob- Bit 0 Group diagnosis, module 9
ject 1, byte 3
Bit 1 Group diagnosis, module 10
Bit 2 Group diagnosis, module 11
Bit 3 Group diagnosis, module 12
Bit 4 Group diagnosis, module 13
AVENTICS™ Ethernet POWERLINK | R412018143-BAL-001-AH | English
Byte no.
Diagnosis ob-
ject 2, byte 4
Diagnosis ob-
ject 2, byte 5
Diagnosis ob-
ject 2, byte 6
Diagnosis ob-
Diagnostic type and de-
ject 2, byte 7
vice
Bus coupler diagnosis
Bus coupler diagnosis

5.6.2 Reading out the bus coupler diagnostic data

The diagnostic data of the bus coupler can be read out from the following ob-
jects:
You can read out the bus coupler diagnostic data byte by byte or as a string.
To read out the bus coupler diagnostic data byte by byte:
Enter the following object data in the "Read SDO" field of the PLC configura-
u
tion software in object 0x2012.
Table 13: Reading out bus coupler diagnostic data byte by byte with object
0x2012
Object
Group diagnoses of mod-
no.
ules
0x2012 0
To read out the bus coupler data as a string:
Enter the following object data in the "Read SDO" field of the PLC configura-
u
tion software in object 0x3012.
Group diagnoses of mod-
ules
Table 14: Reading out bus coupler diagnostic data as a string with object 0x3012
Object
no.
0x3012 0
Bit Meaning
no.
Bit 5 Group diagnosis, module 14
Bit 6 Group diagnosis, module 15
Bit 7 Group diagnosis, module 16
Bit 0 Group diagnosis, module 17
Bit 1 Group diagnosis, module 18
Bit 2 Group diagnosis, module 19
Bit 3 Group diagnosis, module 20
Bit 4 Group diagnosis, module 21
Bit 5 Group diagnosis, module 22
Bit 6 Group diagnosis, module 23
Bit 7 Group diagnosis, module 24
Bit 0 Group diagnosis, module 25
Bit 1 Group diagnosis, module 26
Bit 2 Group diagnosis, module 27
Bit 3 Group diagnosis, module 28
Bit 4 Group diagnosis, module 29
Bit 5 Group diagnosis, module 30
Bit 6 Group diagnosis, module 31
Bit 7 Group diagnosis, module 32
Bit 0 Group diagnosis, module 33
Bit 1 Group diagnosis, module 34
Bit 2 Group diagnosis, module 35
Bit 3 Group diagnosis, module 36
Bit 4 Group diagnosis, module 37
Bit 5 Group diagnosis, module 38
Bit 6 Group diagnosis, module 39
Bit 7 Group diagnosis, module 40
Bit 0 Group diagnosis, module 41
Bit 1 Group diagnosis, module 42
Bit 2 Reserved
Bit 3 Reserved
Bit 4 Reserved
Bit 5 Reserved
Bit 6 Reserved
Bit 7 Reserved
The group diagnostic data of the modules can also be accessed acycli-
cally with SDOs. For a list of all manufacturer-specific objects, see
g 15. Appendix.
Sub-ob- Contents
ject no.
Highest sub-object no.
1 Bus coupler diagnostic byte
1
2 Bus coupler diagnostic byte
2
Sub-ob- Contents
ject no.
Highest sub-object no.
Diagnostic type and de-
vice
Group diagnoses of mod-
ules
Group diagnoses of mod-
ules
Group diagnoses of mod-
ules
Group diagnoses of mod-
ules
Default value
2
Default value
1
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