Preface
CPU 31xC and CPU 31x, Technical Data
iv Manual, 01/2006 Edition, A5E00105475-06
Note
For information on the special features of the CPU 315F-2 DP (6ES7 315-6FF00-0AB0) and
CPU 317F-2 DP
(6ES7 317-6FF00-0AB0), refer to the product information in the Internet:
http://support.automation.siemens.com under article ID 17015818.
Note
There you can obtain the descriptions of all current modules. For new modules, or modules
of a more recent version, we reserve the right to include a Product Information containing
latest information.
Changes in comparison to the previous version
Compared to the previous version of this manual CPU31xC and CPU31x, Technical Data,
with the footnote number: A5E00105475-05, Release 08/2004, there are following changes:
• CPU 319-3 PN/DP, 6ES7 318-3EL00-0AB0, Firmware V2.4.0, supplemented
• Product information A5E00385496-01 integrated into manual
New features of CPU 319-3 PN/DP:
• Increased instruction-processing performance
• Expansion of quantity structures:
– 1.4 MB work memory
– 4096 modules
• CPU with 3 interfaces (1xMPI/DP, 1xDP and 1xPN)
• Isochronous mode for a sub-process diagram
• New system functions:
– Measuring initiator for diagnostic repeater (SFC 103)
• New message blocks (SFC105-108)
• Addition of following protocol versions to open communication via Industrial Ethernet:
– Connection oriented protocol: ISO on TCP according to RFC 1006
– Connectionless protocol: UDP according to RFC 768
Approvals
The SIMATIC S7-300 product series has the following approvals:
• Underwriters Laboratories, Inc.: UL 508 (Industrial Control Equipment)
• Canadian Standards Association: CSA C22.2 No. 142, (Process Control Equipment)
• Factory Mutual Research: Approval Standard Class Number 3611
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