Technical data

Table Of Contents
DPV1 SFBs According to PNO AK 1131
System Software for S7-300/400 System and Standard Functions - Volume 1/2
8-10
A5E00709327-01
Data Structure of the Target Area AINFO with Interrupts from PROFINET DP or
Central IO Devices
The information for PROFINET IO are found further below.
Byte Meaning
0 to 3
Header information, for an exact description, see below
4 to 199
Additional interrupt information: data for the respective interrupt:
Central: ARRAY[0] to ARRAY[195]
Distributed: ARRAY[0] to ARRAY[59]
Structure of the Header Information with Interrupts from PROFINET DP or Central
IO Devices
Byte Data type Meaning
Length of the received interrupt information in bytes 0 BYTE
central:
distributed:
4 to 224
4 to 63
local: reserved
ID for the interrupt type
1:
2:
3:
4:
5:
6:
31
Diagnostic interrupt
Hardware interrupt
Removal interrupt
Insertion interrupt
Status interrupt
Update Interrupt
Failure of an expansion device, DP master system
or DP station
1 BYTE
distributed:
32 to 126 Manufacturer-specific interrupt
2 BYTE Slot number of the interrupt-triggering component
central: reserved
Identifier
Bits 0 and 1 0: no further information
1: upcoming event, disrupted slot
2: outgoing event, slot not disrupted anymore
3: outgoing event, slot still disrupted
Bit 2: Add_Ack
3 BYTE
distributed:
Bits 3 to 7: Sequence number