Structure Of The Interrupt Header On The Dpv1V1-Capable Dpv1 Master; Interrupt M Type (Byte X+1 In Interrupt Section) - Siemens Simatic 6ES7 157-0AD81-0 A0 Series Manual

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
Byte x+1
Byte x+2
Byte x+3
The remaining structure and the length of the interrupt section depend on the interrupt
type.
Figure 10-9
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
00
H
01
H
02
H
03
H
04
H
*)
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).
DP/PA Link and Y Link Bus Couplings
A5E00193841-01 1
7 6 5 4 3 2 1 0
0 0
Length of the diagnostic blockincluding byte x
(max. 63 bytes)
Code for station diagnosis
7 6 5 4 3 2 1 0
0
02
H
00 :
B
01 :
B
10 :
B
11 :
B
1: User acknowledge required
Interrupt sequence number
Structure of the interrupt header on the DPV1-capable DP master
Interrupt type
Reserved
Diagnostic interrupt
*)
Process interrupt
Removal interrupt
Insertion interrupt
Diagnostics Using the User Program
Bit no.
Bit no.
Interrupt type, see table below
Slot number of the IM 157
no differentiation between incoming and outgoing
interrupt
incoming interrupt
outgoing interrupt
outgoing interrupt, slot still faulty
Byte x+1
05 Status interrupt
H
06 Update interrupt
H
07 to 1F Reserved
H H
20 to 7E Manufacturer-specific
H H
interrupt
7F Reserved
H
Interrupt type
*)
*)
*)
10-15