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
A5E00709327-01
8-23
ATYPE parameter
The following table shows all permissible values for ATYPE, which OB is started in
the associated master, and in which DP mode the given interrupt type is permitted.
ATYPE Meaning in DPV1
standard
Associated OB in the S7 DP master DP mode
DP S7-compatible
1 Diagnostic interrupt Diagnostic interrupt OB (OB82) Yes
2 Hardware interrupt Hardware interrupt OBs (OBs 40 to 47) Yes
Note
In addition to the information given in the table above, the extent to which interrupt
types can be used can also be restricted by the DP master.
Dependency of the interrupt type on the operating mode of the S7 master
For a slave in S7-compatible mode (operated on an S7 master), hardware and
diagnostic interrupts can only be sent when the associated DP master is in RUN
mode (DP: Operate). If the DP master is in STOP mode (DP: Clear), the interrupt
will be withheld, and SFB 75 will return the error information W#16#80C8. In this
case, the user is responsible for sending the interrupt at a later time.
ASPEC parameters
According to the applicable standard, this parameter shows the diagnostic status of
the virtual slot. For this reason, you may assign a value other than zero to ASPEC
only when sending a diagnostic interrupt.
Since the S7 additional interrupt information for a diagnostic interrupt (data record
0) contains incoming/outgoing information (see Diagnostic Data Byte 0 Bit 0), you
must describe bit 0 (module fault) in byte 0 of the additional interrupt information as
follows:
ASPEC "Module fault" bit in AINFO
0 0
1 1
2 0
3 1