Siemens SIMATIC SM 335 - Format of Diagnostic Data for the SM 335

Data Exchange with the SM 335
3-32
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
3.4.2 Format of diagnostic data for the SM 335
Format
Once diagnostic data record DR1 has been read by system function 59, the
SM 335 diagnostic data are available in the specified memory.
The diagnostic data are formatted as shown in Table 3-18.
Table 3-18 SM 335 Diagnostic Data
Module diag-
nostic byte
Content Default
0 Module diagnostic byte 1 (see Subsection 3.4.3) 40
H
1 Module diagnostic byte 2 (see Subsection 3.4.4) Fixed: 35
H
2 Module diagnostic byte 3 (see Subsection 3.4.5) 00
H
3 Module diagnostic byte 4 (see Subsection 3.4.6) 00
H
4 Channel-specific diagnostic byte (see Subsection 3.4.7)
Channel type: 00
H
(general error), 71
H
(input),
73
H
(output)
00
H
5 Number of diagnostic bits per channel Fixed: 08
H
6 Number of inputs/outputs Fixed: 08
H
7 Change in diagnostic byte for input/output
(set bit corresponds to changes in bytes 8 to 15)
00
H
8 Channel-specific diagnostic byte for analog input CH0 00
H
9 Channel-specific diagnostic byte for analog input CH1 00
H
10 Channel-specific diagnostic byte for analog input CH2 00
H
11 Channel-specific diagnostic byte for analog input CH3 00
H
12 Channel-specific diagnostic byte for analog output CH0 00
H
13 Channel-specific diagnostic byte for analog output CH1 00
H
14 Channel-specific diagnostic byte for analog output CH2 00
H
15 Channel-specific diagnostic byte for analog output CH3 00
H