Diagnostics
7-6
IM 178-4
C79000-G7076-C178-01
Vendor ID
The vendor ID contains a code that describes the type of DP slave.
Table 7-5
Structure of the Vendor ID
Byte
Content
4
80
H
5
64
H
7.2.3
Structure of the ID-Related and Device-Related Slave Diagnostic
Data
ID-Related Diagnostic Data
On the IM 178-4, the ID-related diagnostic data is structured as follows:
Table 7-6
Structure of the ID-Related Diagnostic Data
Byte
Content
Meaning
6
43
H
Code and length (including byte 6) of the ID-related
diagnostic data
7
00
H
or 08
H
00
H
, is no error has occurred:
08
H
, if an error has occurred
8
00
H
reserved
Device-Related Diagnostic Data
The diagnostic data record DS 1 typical for SIMATIC S7 is entered in the
device-related diagnostic data. The data records and diagnostic data are described
for SIMATIC S7/M7 in the
System and Standard Functions reference manual.
Table 7-7
Structure of the Device-Related Diagnostic Data
Byte
Content
Meaning
9
14
H
Code and length (including byte 9) of the device-re-
lated diagnostic data
10
01
H
Code for S7 diagnostics
11
4
Slot 4
12
00
H
reserved
13 to 28
Diagnostic data
The diagnostic data consists of a module-specific section (bytes 13 to 16) and a
channel-specific section (bytes 17 to 28).