Siemens CPU 31 Series Technical Data Manual page 121

Technical data
IEC Counters
•
•
S7 timers
•
•
•
IEC timers
•
•
Data areas and their retentive address areas
Bit memory
•
•
Clock memory
Data blocks
•
Local data per priority class
Blocks
Total
OBs
•
Nesting depth
•
•
FBs
•
•
FCs
•
•
Address areas (I/O)
Total I/O address area
I/O process image
CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06
Type
Number
Retentive address areas
Default
Timer range
Type
Number
Retentive address areas
Default retentive address areas
Size
Size
Per priority class
Additional within an error OB
Number, Max.
Size
Number, Max.
Size
Technical data of CPU 31xC
Yes
SFB
unlimited (limited only by RAM size)
256
Configurable
Not retentive
10 ms to 9990 s
Yes
SFB
unlimited (limited only by RAM size)
256 bytes
Configurable
MB0 to MB15
8 (1 memory byte)
Max. 511
(in the 1 to 511 range of numbers)
Max. 16 KB
Max. 510 bytes
1024 (DBs, FCs, FBs)
The maximum number of blocks that can be
loaded may be reduced if you are using another
MMC.
see the Instruction List
Max. 16 KB
8
4
1024
(in the 0 to 2047 range of numbers)
Max. 16 KB
1024
(in the 0 to 2047 range of numbers)
Max. 16 KB
Max. 1024 bytes/1024 bytes
(can be freely addressed)
128 bytes / 128 bytes
6.3 CPU 313C
6-9