11/12/2017 10:20 PM | |
Joined: 3/28/2015 Last visit: 8/25/2024 Posts: 721 Rating: (213) |
Hello, 1-The new CPU will work like the old one. 2-No need to modify the HW. 3-Insert the MMC into the new CPU when the power is off. 4-Kindly have a look at the following FAQ: How do you reset a SIMATIC S7-300 CPU and MMC (default reset or overall reset)? |
Eng.Mohamed Ibrahim |
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This contribution was helpful to1 thankful Users |
11/13/2017 8:50 AM | |
Joined: 7/9/2015 Last visit: 9/24/2024 Posts: 3943 Rating: (586) |
Hi, yes, do like Online Tech. Information about compatibility and spare-part replacement you wil also find in product note of your modul/PLC. Check this: Innovated SIMATIC S7-300 CPUs 319-3 PN/DP and 319F-3 PN/DP Released for DeliveryRegards, Towome |
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7/1/2019 3:03 PM | |
Joined: 9/27/2006 Last visit: 9/24/2024 Posts: 12282 Rating: (2685)
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Hello Dimitris; The MMC holds the load memory for the project, which means it holds the last download to the PLC; so transferring it to the new CPU (while power is off) should allow the new CPU to operate as the old one, if as you say they are the same part number. The screenshot below is taken from the Step 7 programming manual; there is more information on the use nd limitations of the MMC (and more subjects) that you will find interesting. SIMATIC Programming with STEP 7 V5.5 https://support.industry.siemens.com/cs/us/en/view/45531107 Hope this helps, Daniel Chartier
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