Siemens SIMATIC S7-300 Module data Technical Data Manual

Technical data of CPU 31x
7.2 CPU 312
CPU 31xC and CPU 31x, Technical Data
7-4 Manual, 01/2006 Edition, A5E00105475-06
Technical data
IEC Counters Yes
• Type
SFB
• Number
unlimited (limited only by RAM size)
S7 timers 128
• Retentive address areas
Configurable
• Default
Not retentive
• Timer range
10 ms to 9990 s
IEC timers Yes
• Type
SFB
• Number
unlimited (limited only by RAM size)
Data areas and their retentive address areas
Bit memory 128 bytes
• Retentive address areas
Yes
• Preset retentive address areas
MB0 to MB15
Clock memory 8 (1 memory byte)
Data blocks 511
(in the 1 to 511 range of numbers)
• Size
16 Kbytes
Local data per priority class Max. 256 bytes
Blocks
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)
Total I/O address area 1024 bytes /1024 bytes
(can be freely addressed)
I/O process image 128 bytes/128 bytes
Digital channels Max. 256
Of those central Max. 256

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)