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Memory CPU 317-2 PN/DP

Created by: Per Olof at: 11/1/2013 4:07 PM (8 Replies)

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11/1/2013 4:07 PM	Rate (0)
Per Olof Posts: 311 Rating: (3)	Hello all, Can someone explain alittle bit about the memory ? How much memory have I used ? I got CPU 317-2 PN/DP, how much memory is it in the CPU ? Per Olof Attachment memory.jpg (132 Downloads)
Per Olof Posts: 311 Rating: (3)
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11/1/2013 6:02 PM	Rate (0)
billwest Posts: 510 Rating: (117)	Here is a link to everything you need to know about memory: http://support.automation.siemens.com/WW/view/en/7302326 Simple math should do the rest for you. Good Luck, billwest
billwest Posts: 510 Rating: (117)
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This contribution was helpful to 1 thankful Users dchartier

11/1/2013 10:21 PM	Rate (0)
Per Olof Posts: 311 Rating: (3)	Thanks! But wahy does it say Free memory so large ? The cycle time in the simulator, it that what the cycle time will be in the PLC ? Or is something that is nor relavent ?
Per Olof Posts: 311 Rating: (3)
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11/2/2013 1:36 AM	Rate (1)
billwest Posts: 510 Rating: (117)	The memory is so large because I assume you are looking at the PLCSim.2 GB is probably the memory in your PC. The scan time in PLCSim is not necessarily representative of the scan time in the PLC. There are lots of factors that affect the scan time when running in PLCSim. Regards, billwest
billwest Posts: 510 Rating: (117)
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11/2/2013 11:05 AM	Rate (0)
Per Olof Posts: 311 Rating: (3)	ohhh, its the scan time, more or less in the PLCSIM ?
Per Olof Posts: 311 Rating: (3)
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11/2/2013 2:32 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	Per Olof ohhh, its the scan time, more or less in the PLCSIM ? Impossible to say. May be less, may be more.
IBN-Service Posts: 8946 Rating: (999)
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11/2/2013 2:34 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	Per Olof ...The cycle time in the simulator, it that what the cycle time will be in the PLC ? Or is something that is nor relavent ? No, absolutely not! You have no chance to find out PLC - scantime by watching same program running in PLCSIM.
IBN-Service Posts: 8946 Rating: (999)
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11/3/2013 10:01 AM	Rate (0)
_Kalle_ Posts: 62 Rating: (0)	Hello, Warning!! The simulation cycle time is not in the same region as the cycle time on HW! In my case it was 150 longer in the HW!!!! That is really bad that you can not trust the simulator!!
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11/9/2013 10:12 AM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	PLCSIM is for testing the code,not for testing the hardware!
IBN-Service Posts: 8946 Rating: (999)
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This contribution was helpful to 1 thankful Users billwest

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