Siemens Simatic 6ES7 157-0AC80-0 A0 Series, Руководство пользователя

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Diagnostics Using the User Program
10-15
DP/PA Link and Y Link Bus Couplings
A5E00193841-011
Structure of the interrupt section on the DPV1-capable DP master
The interrupt section consists of an interrupt header and the additional interrupt
function. The interrupt header always consists of four bytes. The structure of the
additional interrupt function depends on the interrupt type. Its length is a maximum
of 59 bytes.
Byte x
Bit no.
Length of the diagnostic blockincluding byte x
(max. 63 bytes)
Code for station diagnosis
7 6 5 4 3 2 1 0
0 0
Byte x+1 0 Interrupt type, see table below
Byte x+2 Slot number of the IM 157
Byte x+3
00
B
: no differentiation between incoming and outgoing
interrupt
01
B
: incoming interrupt
10
B
: outgoing interrupt
11
B
: outgoing interrupt, slot still faulty
02
H
Bit no. 7 6 5 4 3 2 1 0
1: User acknowledge required
Interrupt sequence number
The remaining structure and the length of the interrupt section depend on the interrupt
type.
Figure 10-9 Structure of the interrupt header on the DPV1-capable DP master
Start address x is 168 in redundant operation and 160 in DP standard master
operation.
Interrupt type
Table 10-8 Interrupt m type (byte x+1 in interrupt section)
Byte x+1 Interrupt type Byte x+1 Interrupt type
00
H
Reserved 05
H
Status interrupt
*)
01
H
Diagnostic interrupt 06
H
Update interrupt
*)
02
H
Process interrupt
*)
07
H
to 1F
H
Reserved
03
H
Removal interrupt 20
H
to 7E
H
Manufacturer-specific
interrupt
*)
04
H
Insertion interrupt 7F
H
Reserved
*)
These interrupt types only occur if they are generated by an underlying DPV1 slave and
passed on by the IM 157 (interrupt routing, see below).