Cpu 313 - Siemens SIMATIC S7-300 Series Reference Manual

1.4.2

CPU 313

Technical Specifications of the CPU 313
CPU and Product Version
MLFB 6ES7 313-1AD03-0AB0
S
Hardware version 01
S
Firmware version V 1.1.0
S
Matching programming STEP 7 V 5.0;
Service Pack 03
package
Memory
Work memory
S
integral 12 KB
S
Expandable no
Load memory
S
integral 20 KB RAM
S
Expandable FEPROM Up to 4 MB
S
Expandable RAM no
Backup Yes
S
With battery All data
S
Without battery 72 bytes retentive
Configurable
(data, flags, timers)
Processing times
Processing times for
S
0.6 ms minimum
Bit instructions
S
2 ms minimum
Word instructions
S
2 ms minimum
Double integer math
S
60 ms minimum
Floating-point math
instructions
Timers/Counters and their retentive characteristics
S7 counters 64
S
Adjustable retentivity from C 0 to C 63
S
Preset from C 0 to C 7
S
Counting range 1 to 999
IEC Counters Yes
S
Type SFB
S7 timers 128
S
Adjustable retentivity from T 0 to T 31
S
Preset No retentive times
S
Timing range 10 ms to 9990 s
IEC Timers Yes
S
SFB
Type
PLC S7-300, CPU Specifications CPU 312 IFM to CPU 318-2 DP
A5E00111190-01
Data areas and their retentive characteristics
Retentive data area as a max. 1 DB, 72 data bytes
whole (inc. flags, timers,
counters)
Bit memories 2048
S
Adjustable retentivity MB 0 to MB 71
S
Preset MB 0 to MB 15
Clock memories 8 (1 memory byte)
Data blocks max. 127 (DB 0 reserved)
S
Size max. 8 KB
S
Adjustable retentivity 1 DB, 72 bytes
S
Preset No retentivity
Local data (non-alterable) max. 1536 bytes
S
Per priority class 256 bytes
Blocks
OBs See Instruction List
S
Size max. 8 KB
Nesting depth
S
Per priority class 8
S
additional levels within 4
an error OB
FBs 128
S
Size max. 8 KB
FCs 128
S
Size max. 8 KB
Address areas (I/O)
Peripheral address area
S
Digital 0 to 31/0 to 31
S
Analog 256 to 383/256 to 383
Process image (cannot be 32 bytes/32 bytes
customized)
Digital channels max. 256/256
Analog channels max. 64/32
CPUs
1-37