Siemens CPU 315-2 PN/DP - Page 134

Technical data of CPU 31xC
6.5 CPU 314C-2 PtP and CPU 314C-2 DP
CPU 31xC and CPU 31x, Technical Data
6-22 Manual, 01/2006 Edition, A5E00105475-06
Technical data
CPU 314C-2 PtP CPU 314C-2 DP
IEC Timers Yes
• Type
SFB
• Number
unlimited (limited only by RAM size)
Data areas and their retentivity CPU 314C-2 PtP CPU 314C-2 DP
Flag bits 256 bytes
• Retentive address areas
Configurable
• Default retentivity
MB0 to MB15
Clock flag bits 8 (1 byte per flag bit)
Data blocks Max. 511
(in the 1 to 511 range of numbers)
• Size
Max. 16 Kbytes
Local data per priority class Max. 510 bytes
Blocks CPU 314C-2 PtP CPU 314C-2 DP
Total 1024 (DBs, FCs, FBs)
The maximum number of blocks that can be loaded may be reduced if you are
using another MMC.
OBs See the Instruction List
• Size
Max. 16 KB
Nesting depth
• Per priority class
8
• additional within an error OB
4
FBs
• Number, Max.
1024
(in the 0 to 2047 range of numbers)
• Size
Max. 16 KB
FCs
• Number, Max.
1024
(in the 0 to 2047 range of numbers)
• Size
Max. 16 KB
Address areas (I/O) CPU 314C-2 PtP CPU 314C-2 DP
Total I/O address area Max. 1024 bytes / 1024 bytes
(can be freely addressed)
Max. 1024 bytes / 1024 bytes
(can be freely addressed)
• Distributed
None Max. 1000 bytes
I/O process image 128 bytes / 128 bytes 128 bytes / 128 bytes
Digital channels Max. 1016 Max. 8192
• Centralized
Max. 992 Max. 992
• Integrated channels
24 DI / 16 DO 24 DI / 16 DO
Analog channels Max. 253 Max. 512
• Centralized
Max. 248 Max. 248
• Integrated channels
4 + 1 AI / 2 AO 4 + 1 AI / 2 AO