simatic s7-300 - megaelektrik.net

SIMATIC S7-300
Central processing units
CPU 312C to CPU 317F-2 DP
■ Technical specifications (continued)
6ES7 312-
5BD01-0AB0
CPU/blocks
DB
- Number, max. 511;
DB 0 reserved
- Size, max.
6ES7 313-
5BE01-0AB0
511;
DB 0 reserved
6ES7 313-
6BE01-0AB0
511;
DB 0 reserved
6ES7 313-
6CE01-0AB0
511;
DB 0 reserved
6ES7 314-
6BF01-0AB0
511;
DB 0 reserved
6ES7 314-
6CF01-0AB0
511;
DB 0 reserved
16 KByte 16 KByte 16 KByte 16 KByte 16 KByte 16 KByte
FB
- Number, max. 512; from 512; from 512; from 512 512 512
FB 0 to FB 511 FB 0 to FB 511 FB 0 to FB 511
- Size, max. 16 KByte 16 KByte 16 KByte 16 KByte 16 KByte 16 KByte
4
FC
- Number, max. 512; from 512; from 512; from 512 512 512
FC 0 to FC 511 FC 0 to FC 511 FC 0 to FC 511
- Size, max. 16 KByte 16 KByte 16 KByte 16 KByte 16 KByte 16 KByte
OB
- Number, max. See instruction
list
See instruction See instruction See instruction See instruction
list
list
list
list
- Size, max. 16 KByte 16 KByte 16 KByte 16 KByte 16 KByte 16 KByte
See instruction
list
Nesting depth
- per priority class 8 8 8 8 8 8
- additional levels within an
error OB
4 4 4 4 4 4
CPU/processing times
• for bit instruction, min. 0.2 µs 0.1 µs 0.1 µs 0.1 µs 0.1 µs 0.1 µs
• for word instruction, min. 0.4 µs 0.2 µs 0.2 µs 0.2 µs 0.2 µs 0.2 µs
• for integer math, min. 5 µs 2 µs 2 µs 2 µs 2 µs 2 µs
• for floating-point math, min. 6 µs 3 µs 3 µs 3 µs 3 µs 3 µs
Timers/counters and their
retentive characteristics
S7 counter
-Number 128 256 256 256 256 256
• of which retentive without battery
- adjustable Yes Yes Yes Yes Yes Yes
- lower limit 0 0 0 0 0 0
- upper limit 128 256 256 256 256 256
• Retentivity
- adjustable Yes
• Counting range
- lower limit 0 0 0 0 0 0
- upper limit 999 999 999 999 999 999
IEC counter
- available Yes Yes Yes Yes Yes Yes
- Type SFB SFB SFB SFB SFB SFB
S7 times
-Number 128 256 256 256 256 256
• Retentivity
- adjustable Yes Yes Yes Yes Yes Yes
- lower limit 0 0 0 0 0 0
- upper limit 128 256 256 256 256 256
- preset
No retention No retention No retention No retention No retention No retention
• Timing range
- lower limit 10 ms 10 ms 10 ms 10 ms 10 ms 10 ms
- upper limit 9,990 s 9,990 s 9,990 s 9,990 s 9,990 s 9,990 s
IEC timer
- available Yes Yes Yes Yes Yes Yes
- Type SFB SFB SFB SFB SFB SFB
Siemens ST 70 · 2005
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