Technical data

DPV1 SFBs According to PNO AK 1131
System Software for S7-300/400 System and Standard Functions - Volume 1/2
8-22 A5E00709327-01
Identifying the job
When you initiate the transfer of an interrupt to the DP masters with SFB 75 and
then call this SFB once again before the current job has been completed, the
further response of this SFB will depend on whether or not the new call is identical
to the previous one.
If the parameters ID and TYPE match a still unfinished job, the new call of the SFB
call will be treated in sequential order.
Parameters Declaration Data type Memory Area Description
REQ INPUT BOOL I, Q, M, D, L, constant REQ = 1: Transfer the interrupt
ID INPUT DWORD I, Q, M, D, L, constant Any logical address of the transition
area to the DP master (virtual slots), as
viewed from the DP slave, except the
diagnostic address of the station and
the logical address of slot 2.
The relevant information is found in the
low word. Enter zero in the high word.
Bit 15 contains the I/O ID: 0 = input
address, 1 = output address.
ATYPE INPUT INT I, Q, M, D, L, constant Interrupt type
ID for the interrupt type. Possible
values:
• 1: Diagnostic interrupt
• 2: Hardware interrupt
ASPEC INPUT INT I, Q, M, D, L, constant Interrupt identifier:
• 0: No further information
• 1: Incoming event, faulty slot
• 2: Outgoing event, slot no longer
faulty
• 3: Outgoing event, slot still faulty
LEN INPUT INT I, Q, M, D, L, constant Length (in bytes) of additional interrupt
information to be sent
Highest value: 16
DONE OUTPUT BOOL I, Q, M, D, L, DONE=1: Interrupt was transmitted
BUSY OUTPUT BOOL I, Q, M, D, L, BUSY = 1: Interrupt transmission is still
busy
ERROR OUTPUT BOOL I, Q, M, D, L, ERROR = 1: An error has occurred.
STATUS OUTPUT DWORD I, Q, M, D, L, Error information
AINFO IN_OUT ANY I, Q, M, D, L, Interrupt info
Source area for additional interrupt
information