Bytes Y+4 To Y+7 For The Diagnostic Interrupt (Sfb 75) - Siemens SIMATIC S7-300 Hardware And Installation Manual

Structure of the interrupt data when a diagnostic interrupt is generated by
SFB 75 on the intelligent slave (after byte y+4)
Byte y +4
Byte y +5
Byte y +6
Byte y +7
Byte y +19
Figure 11-11
S7-300 Programmable Controller Hardware and Installation
A5E00105492-02
Testing functions, Diagnostics and Fault Elimination
7 6 5 4 3 2 1 0 bit no..
0
7 6 5 4 3 2 1 0 bit no.
7 6 5 4 3 2 1 0 bit no.
7 6 5 4 3 2 1 0 bit no
.
.
.
7 6 5 4 3 2 1 0 bit no.

Bytes y+4 to y+7 for the diagnostic interrupt (SFB 75)

0: module o.k.
1: module fault
Note the SFB 75 usage description
Note that this diagnostic data has a
fixed meaning in the S7 context.
You will find more information in the
.
STEP 7 Online Help
Reference Manual System Software
for S7-300/400 System and Standard
Functions in the Diagnostic Data
chapter
.
or in the
11-31