9/25/2018 7:54 PM | |
Joined: 3/28/2015 Last visit: 8/25/2024 Posts: 721 Rating: (213) |
Hello, Perhaps the following FAQ might help: What should you watch out for when changing from one S7-300 CPU to another? Successor product 6ES7313-5BE01-0AB0 Successor product 6ES7313-5BF03-0AB0 Successor product 6ES7313-5BG04-0AB0
When modifying the hardware configuration, you may need to modify in the program. And for this use: |
Eng.Mohamed Ibrahim |
|
9/25/2018 9:28 PM | |
Posts: 4 Rating: (0) |
Many thanks for your reply. I appreciate the program will have the hardware descriptor in it so can not be easily swapped for another PLC regardless of how close the specs look. Reading the What should you watch out for when changing from one S7-300 CPU to another? It states "If the only difference between the order numbers is the last digit of the middle block, for example a CPU with the order number 6ES7315-2AF02-0AB0 is to be replaced by a CPU with the order number 6ES7315-2AF03-0AB0, then compatibility of spare parts is ensured." Based on this the 313-5BE01-0AB0 is 100% compatible with the 313-5BE00-0AB0 I can get hold of a 313-5BE01-0AB0 so this may be a solution. My understanding of this range of PLCs was that the program itself was always stored on the memory card and the memory on the PLC was only available for execution of the code and storing run time variables? In terms of time scales we are somewhat pushed for time. The OEM does have a replacement unit available but at a price that would make your nose bleed. We support the OEM via a local distributor on all consumables, etc even though we can get them much cheaper elsewhere - everyone has to make money along the line and its what ultimately pays for the support we get. However, a 4.2x markup on this unit simply seems excessive. |
Last edited by: MikeBenstead at: 9/25/2018 9:34:37 PM |
|
9/25/2018 9:33 PM | |
Posts: 4 Rating: (0) |
Thank you for the reply. Reading the article one what to watch out for it states "If the only difference between the order numbers is the last digit of the middle block, for example a CPU with the order number 6ES7315-2AF02-0AB0 is to be replaced by a CPU with the order number 6ES7315-2AF03-0AB0, then compatibility of spare parts is ensured." Does this imply that a unit with only the last digit changed could be directly swapped for an older unit without the need to change the hardware configuration or program in any way? i.e. change unit and swap memory card. Also, can you tell me if the program is compiled before download to the PLC or in its original source code format that could be modified - I.e. downloaded to the PC, hardware configuration changed and the uploaded back to the PLC/Memory card? Mike |
9/26/2018 9:38 AM | |
Joined: 3/28/2015 Last visit: 8/25/2024 Posts: 721 Rating: (213) |
Hello, In my opinion,the steps will be as in the following: 1-Turn off the Power. 2-Remove the old CPU S7 313-5BE00-0AB0 3-Install the new CPU S7 313-5BG04-0AB0 4-Insert MMC in the new CPU at "Stop mode". 5-Turn on the Power. 6-Execute the Memory reset. The machine will be run without any problems. I did this work few months ago and succeeded. |
Eng.Mohamed Ibrahim |
|
Follow us on