Siemens S7-300 appendix Cpu, Technical data for the CPU

Technical data of CPU 31x 7.3 CPU 314

7.3CPU 314

Technical data for the CPU 314

Table 7-4		Technical data for the CPU 314
Technical data
CPU and version
Order number			6ES7314-1AF10-0AB0
•	Hardware version		01
•	Firmware version		V 2.0.0
•	Associated programming package		STEP 7 as of V 5.1 + SP 4
Memory
RAM
•	Integrated		48 KB
•	Expandable		No
Load memory			Plugged in with MMC (max. 8 MB)
Data storage life on the MMC			At least 10 years
(following final programming)
Buffering			Guaranteed by MMC (maintenance-free)
Execution times
Processing times of
•	Bit operations		Min. 0.1 μs
•	Word instructions		Min. 0.2 μs
•	Fixed-point arithmetic		Min. 2.0 μs
•	Floating-point arithmetic		Min. 6 μs
Timers/counters and their retentivity
S7 counters			256
•	Retentive memory		Configurable
•	Default		from C0 to C7
•	Counting range		0 to 999
IEC Counters			Yes
•	Type		SFB
•	Number		unlimited (limited only by RAM size)
S7 timers			256
•	Retentive memory		Configurable
•	Default		Not retentive
•	Timer range		10 ms to 9990 s
IEC Timers			Yes
•	Type		SFB
•	Number		unlimited (limited only by RAM size)

7-8	CPU 31xC and CPU 31x, Technical data
	Manual, Edition 08/2004, A5E00105475-05