JesperMP said:Now, such a comment just begs for some details. I am interested in the differences between a 315-2DP and a 315-2PN/DP.
Hello JesperMP,
some weeks ago I must realize that the 315-2PN/DP is based on the 317-2PN/DP (Tricore) and is a lot faster than the 315-2DP which is based on the C165 (same as in 314C, 313C....). This is not stated in the manual, but open the box or do some measurements, and you will see it!
SIEMENS uses C165 platform, Tricore(317, 315PN/DP) and MIPS(319) Platform and ASIC (318, 400).
Every Platform need own Firmware has its own Bugs and differences in Code Execution:
Example: Firmware Update Changes for 315 2DP, 315 2PN/DP, 319 2PN/DP:
(Bad TAR Operation in 319, bad LOOP in 315 2PN/DP, bad "o" Operation in 315 2DP) Other Players in this market are not better, but don't expect SIEMENS to be way better than others!
The URLs from the Simatic.com page is to long to be displayed correctly here
(or more likely I'm not able to show it correctly ;-) )
Please go to Simatic.com -> support -> Software Dowloads -> S7-300 CPUs -> search for the Firmwareupdate and read the Changelog
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