Siemens SIMATIC S7-300 Standard CPU

<< Back to Products

Click here for brief specification of each category in S7-300 CPU spectrum:

Link to Siemens website

Standard CPUs

Failsafe CPUs

Compact CPUs

Technology CPU

<< Back to S7-300 Family

Standard CPUs

	Standard CPUs
	CPU 312	CPU 314	CPU 315-2 DP	CPU 317-2 DP
Start of delivery				3rd quarter 2003 (New)
Main memory instructions	16 Kbyte/5 K	48 Kbyte/16 K	128 Kbyte/42 K	512 Kbyte/170 K
Load memory	64 Kbyte to 4 Mbyte trough MMC	64 Kbyte to 8 Mbyte through MMC
Backup	All blocks through MMC			all blocks to max. 256 Kbyte
Processing times Bit operations Word operation Fixed points arithmatic Floating point arithmatic	0.2 µs 0.4 µs 5 µs 6 µs	0.1 µs 0.2 µs 2 µs 6 µs		0.1 µs 0.1 µs 0.2 µs 2 µs
Bit memoies/timers/counters Bit memories S7 timers/counters IEC timers/counters	128 byte 128/128 yes	256 byte 256/256 yes	2048 byte 256/256 yes	4096 byte 512/512 yes
Number of blocks Number of loadable blocks (Sum of FCs+FBs+DBs) Range of numbers	1024 512 FC, 512 FB, 511 DB		1024 2048 FC, 2048 FB, 1023 DB	1024 2048 FC, 2048 FB, 2047 DB
Organization blocks (OB)	free cycle (OB 1) real-time interrupt (OB 10) delay alarm (OB 20) time-triggered (OB 35) interrupt-triggered (OB 40) restart (OB 100) asyn error (OB 80, 82, 85, 87) syn, error (OB 121, 122)		free cycle (OB 1) real-time interrupt (OB 10) delay alarm (OB 20) time-triggered (OB 35) interrupt-triggered (OB 40) DPV1 restart (OB 55-57) restart (OB 100) asyn error (OB 80, 82, 85, 87) syn, error (OB 121, 122)
Address ranges I/O address area I/O process image Digital channels (central) Analog channels (central)	1024/1024 byte 128/128 byte 256 64	1024/1024 byte 128/128 byte 1024 256	2048/2048 byte 128/128 byte 1024 256	8192/8192 byte 256/256 byte 1024 256
Expansions Racks Modules per rack	1 8	max. 4 8
DP interfaces Number of DP master systems int./CP 342-5 Equidistant Activation/deactivation of slaves Transmission speed No. of slaves per station Lateral communication	– – – – – –	– – – – – –	1/1 yes yes 12 MBit/s 124 yes	2/2 yes yes 12 MBit/s 124 yes
Dimensions (mm)	40 x 125 x 130	40 x 125 x 130	40 x 125 x 130	80 x 125 x 130
Order No. group	6ES7312-1AD..	6ES7314-1AF..	6ES7315-2AG..	6ES7317-2AJ..

TOP PAGE

SIMATIC S7-300 Product Overview- Siemens Brochure

SIMATIC S7-300 Page - Siemens Website

Siemens AG Automation and Drive (A&D) - Search Page for any of Siemens A&D products including FAQ, manual, download software tools etc.

SIMATIC Technical Documents Page - Website Siemens