7/14/2012 8:39 AM | |
Joined: 10/7/2005 Last visit: 5/1/2024 Posts: 3004 Rating: (1046)
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Hello habacuc it depends is the only answer I can give you. The 3UR53 948 CPU (aka 948RL)is the "Light" version of the 3UR13 948 CPU (aka 948R) and the main differences are: - 128Kbytes versus 640 Kbytes RAM (R-1, the R-2 version had 1600 Kbytes RAM) - ~15 ms versus ~5msbasic scan cycle time - smallerI/O range and reduced I/O type support Providing none of the above is an issue in your case (which is something you need to work out) and you have two 948RL CPU's, it should work to use them instead of their "big brother" 948R CPU's. I hope this helps and below are the links to manuals which have more detailson the above: S5-155H Programmable Controller (CPU 948R / CPU 948RL) Volume 1/2 S5-155H Programmable Controller (CPU 948R) Volume 2/2 Programming Guide |
Cheers |
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7/16/2012 8:30 PM | |
Posts: 12 Rating: (0) |
THANKS FRITZ FOR YOUR HELP, I THING THAT IS MY PROBLEM. COULD YOU REVIEW THE S5 PROGRAMM ATTACHMENT AND TELL ME IF IT IS POSSIBLE TO COMPPRESS IT OR SOMETHING LIKE THAT. REGARDS. AttachmentSECTOR10.zip (62 Downloads) |
7/17/2012 8:14 AM | |
Joined: 10/7/2005 Last visit: 5/1/2024 Posts: 3004 Rating: (1046)
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Hello habacuc S5 program size seems fine as it is only 110kbyte (i.e. within the limits of 128 kbyte that you have available in a 948RL). Reading through your first post again, I wonder though if you changed the CPU type in COM 155H from a 948R to a 948RL which I believe is mandatory to do (I am kinda speculating here as I've never used the 948RL). As the 948RL is a later addition to the 155H system, you may need to upgrade your COM 155H to a later version too to be able to configure it, seealso the two links below for more on this: Differences between CPU 948RL (Lite) and CPU 948R in AG S5-155H New CPU 948R Lite for the S5-155H Fault-Tolerant PLC System: http://support.automation.siemens.com/WW/view/en/4202974 P.S: Please donot write everything in CAPITAL LETTERS, it makes it hard to read and easy to miss important information. |
Last edited by: fritz at: 7/17/2012 8:18 AMfixed links Cheers |
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7/19/2012 10:56 AM | |
Joined: 10/7/2005 Last visit: 5/1/2024 Posts: 3004 Rating: (1046)
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Hello habacuc You'll see inthe technical specsection of thepreviously listed manual that the I/O framework of the 948R and 948RL are identical so this shouldn't be an issue. The question still is though: Have you tried to change the CPU type via COM 155 H? Come to think of it, another question is: Why do you actually want to "downgrade" your 948R CPU pair tothe 948RL type? |
Cheers |
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