Structure Of The Interrupt Status - Siemens SIMATIC ET 200S Manual

Commissioning and Diagnostics
7.6.6 Interrupt status
Definition
The interrupt status of the station diagnosis provides detailed information about a
DP slave. The station diagnosis begins at byte y and can comprise max. 20 bytes.
Structure
The following figure shows the structure and content of the bytes for a configured
address area of the intermediate memory.
Byte y
Byte y+1
Byte y+2
Byte y+3
Byte y+4
to
Byte y+7
Byte z
Example of byte y+2:
CPU
1st address area
2nd address area
Figure 7-6
7-22
7 6 5 4 3 2 1 0
0 0
Length of the interrupt status, including byte y
(max. 20 bytes)
Code for the station diagnosis
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
0 0 0 0 0 0
.
.
.
= 02
H
= 04
H
= 05 etc.
H

Structure of the interrupt status

Bit no.
01 : Code for diagnostic interrupt
H
02 : Code for process interrupt
H
Bit no.
Slot no.:
2 = CPU
4 ... 35 = No. of configured
address area of
intermediate memory
Bit no.
00 = No further information
on diagnostic status
01 = Incoming diagnosis
(at least 1 fault
exists)
10 = Outgoing diagnosis
11 = Outgoing diagnosis, but
another fault exists
Diagnostic and interrupt data
ET 200S IM 151-7 CPU Interface Module
For
diagnostic
interrupt
only
A5E00058783-04