Siemens CPU 314 User Manual

Technical data of CPU 31x
7.7 CPU 317-2 PN/DP
CPU 31xC and CPU 31x, Technical Data
7-34 Manual, 01/2006 Edition, A5E00105475-06
Technical Data
IEC Timers Yes
• Type
SFB
• Number
Unlimited
(limited only by work memory)
Data areas and their retentivity
Flag bits 4096 bytes
• Retentive memory
Configurable
• Default retentivity
From MB0 to MB15
Clock flag bits 8 (1 byte per flag bit)
Data blocks
• Number
2047
(in the 1 to 2047 range of numbers)
• Size
64 KB
• Non-Retain support (configured retention)
Yes
Local data per priority class Max. 1024 bytes
Blocks
Total 2048 (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
64 KB
Nesting depth
• Per priority class
16
• additional within an error OB
4
FBs See the Instruction List
• Number, Max.
2048
(in the 0 to 2047 range of numbers)
• Size
64 KB
FCs See the Instruction List
• Number, Max.
2048
(in the 0 to 2047 range of numbers)
• Size
64 KB
Address areas (I/O)
Total I/O address area Max. 8192 bytes / 8192 bytes
(can be freely addressed)
Distributed Max. 8192 bytes
I/O process image
• Configurable
2048/2048
• Default
256/256
Digital channels 65536/65536
Of those central Max. 1024
Analog channels 4096/4096

Siemens CPU 314 Specifications

General

Brand	Siemens
Model	CPU 314
Category	Controller
Language	English