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Interrupts
The interrupt section for the ET 200iS is structured as follows:
7 6 5
Byte x
0 0 0 1 0 0 0 0
Length of the interrupt part incl. byte x (=max. 48 bytes)
Code for device-specific diagnostics
7 6
Byte x+1
0
7
Byte x+2
7
Byte x+3
Interrupt sequence
number (1 to 31)
Byte x+4 to ...
.
.
.
Figure 7-14 Structure of the Interrupt Status of the Interrupt Section
ET 200iS Distributed I/O Station
A5E00087831-02
0
Bit no.
0
Interrupt type:
0000001 : Diagnostic interrupt
0000010 : Hardware interrupt
0000011 : Remove interrupt
0000100 : Insert interrupt
0000110 Update interrupt
0
Slot number
02: IM 151-2 supplies interrupt (hardware interrupt when time stamping)
04 to 35: Slot of the module supplying interrupt
3
1 0
00 : Hardware, remove or insert interrupt
B
01 : At least one error exists
B
10 : Error leaving state
B
11 : reserved
B
...Byte x+43
Diagnostic data
(content of data
records 0 and 1)
Commissioning and Diagnostics
B
B
B
B
B
...Byte x+7
...Byte x+8
Hardware
Remove/insert
interrupt data
interrupt data
...Byte x+6
Update
interrupt
7-39
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