Technical data of CPU 31xC   
6.6 Technical data of the integrated I/O 
  CPU 31xC and CPU 31x, Technical Data 
6-44  Manual, 01/2006 Edition, A5E00105475-06 
Start information for OB40 
The table below shows the relevant temporary variables (TEMP) of OB40 for the interrupt 
inputs of 31xC CPUs. A description of process interrupt OB 40 is found in the Reference 
Manual 
System and Standard Functions
. 
Table 6-11  Start information for OB40, relating to the interrupt inputs of the integrated I/O 
Byte  Variables  Data type    Description 
6/7  OB40_MDL_ADDR  WORD  B#16#7C  Address of the interrupt-
triggering module (here: default 
addresses of the digital inputs) 
8 on  OB40_POINT_ADDR  DWORD  see the figure 
below 
Displaying the interrupt-
triggering integrated inputs 
 
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ಹ
      
UHVHUYHG
%LWQR
PRAL: process interrupt
Inputs are designated with default addresses.
35$/IURP(
35$/IURP(
35$/IURP(
35$/IURP(
35$/IURP(
35$/IURP(
 
Figure 6-9  Displaying the statuses of CPU 31xC interrupt inputs 
PRAL: process interrupt 
The inputs are assigned default addresses. 
6.6.5  Diagnostics 
Standard I/O 
Diagnostic data is not available for integrated I/O which is operated as standard I/O (see also 
the Reference Manual 
Module Data
). 
Technological functions 
Diagnostics options for the respective technological function are found in the Manual 
Technological Functions
.