Variable Data type Description
OB55_PRIORITY BYTE Configured priority class:
Default value: 2
OB55_OB_NUMBR BYTE OB number (55)
OB55_RESERVED_1 BYTE reserved
OB55_IO_FLAG BYTE Input module: 54h
Output module: 55h
OB55_MDL_ADDR WORD Logical base address of the module that triggers the inter-
rupt
OB55_LEN BYTE Data block length supplied by the interrupt
OB55_TYPE BYTE ID for the interrupt type "Status interrupt"
OB55_SLOT BYTE Slot number of the interrupt triggering component (module)
OB55_SPEC BYTE Specifier:
n Bit 1, 0: Interrupt specifier
n Bit 2: Add_Ack
n Bit 7 ... 3: Seq. number
OB55_DATE_TIME DATE_AND_TIME Date and time of day when the OB was called
You can obtain the full additional information on the interrupt from the
frame by calling SFB 54 "RALRM" in OB 55.
Ä
Chap. 14.2.22 ‘SFB 54 -
RALRM - Receiving an interrupt from a periphery module’ page 777
6.4.2 OB 56 - DP: Update Alarm - Update Interrupt
A update interrupt OB (OB 56) is only available for DP-V1 capable CPUs.
The CPU operating system calls OB 56 if an update interrupt was triggered via the slot of
a DP-V1 slave. This can be the case if you have changed the parameters for the slot of a
DP-V1 slave. For precise information on events that trigger an update interrupt, refer to
the documentation of the DP-V1 slave manufacturer.
The following table describes the start information of the OB 56 with default names of the
variables and its data types:
Variable Data type Description
OB56_EV_CLASS BYTE Event class and identifiers:
11h: incoming event
OB56_STRT_INF BYTE 56h: Update interrupt for DP
59h: Update interrupt for PROFINET IO
Description
Local data
VIPA SPEED7
Organization Blocks
Communication Interrupts > OB 56 - DP: Update Alarm - Update Interrupt
HB00 | OPL_SP7 | Operation list | en | 18-30 75
To Next Page
Loading...
