Hardware Interrupts; Supplementary Information On The Address Space Of A Cfu - Siemens SIMATIC CFU Commissioning Manual

Appendix
A.9 Drivers, parameters, diagnostic messages and address space
A.9.2.5

Hardware interrupts

Hardware interrupts
A hardware interrupt is generated for the following event:
● Comparison event for DQ occurred
Structure of the additional interrupt information
The hardware interrupt can only be triggered in "Counter" operating mode.
Name of the data block
USI (User Structure Identi‐
fier)
The channel that triggered the hardware interrupt is shown.
An error event that triggered the hardware interrupt follows.
A.9.2.6

Supplementary information on the address space of a CFU

The input and output address space (user data + PROFINET user data qualifier) of the CFU is
1440 bytes in each case. However, only 1000 bytes are available in each case in S2 mode or
with use of CiR.
Each submodule also allocates 1 byte in addition to the process data in the input and output
address space for the user data qualifier (IOXS).
Table A-19 Submodule dependency of the bytes in the input and output address space
Submodule has...
Diagnostics address
Input address with x bytes of process data
Output address with x bytes of process data
Input and output address with x bytes of process
data in each case
200
Contents
W#16#0001
or
W#16#0010
Channel B#16#00 to
B#16#0F
Event B#16#05
Allocated bytes in the input address
space
1
x+1
1
x+1
Remark
Additional interrupt information for hardware in‐
terrupts of the CFU
Number of the channel that triggered the hard‐
ware interrupt.
Comparison event for DQ occurred
Allocated bytes in the output ad‐
dress space
1
1
x+1
x+1
Commissioning Manual, 08/2019, A5E39252870-AD
Bytes
2
1
1
SIMATIC CFU