12/3/2014 12:10 PM | |
Joined: 3/14/2008 Last visit: 9/25/2024 Posts: 2097 Rating: (938) |
I heard from our Siemens trainer that in version 8, its possible to change the computer name without causing problems to the database. The manual still states you must do a complete reinstall, butthat'sto cover Siemens |
If I could help you, you can use the RATE button. Thank you. |
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12/3/2014 1:12 PM | |
Joined: 1/17/2006 Last visit: 7/19/2024 Posts: 800 Rating: (63) |
Oke, nice to hear, but did your trainer also tell you how to proceed? |
12/3/2014 4:55 PM | |
Posts: 32 Rating: (4) |
Hi Jaapie, the official statement is Changing computer names The computer name can no longer be changed after the installation of PCS 7. If you do change the computer name, you will have to install the computer again (Restore DVD). Changing computer names often leads to problems in practice (e.g. in the case of multi-station systems with the SQL server installed). The following rules must be observed:
I found a FAQ (Link), there it says you have to reinstall your SQL-Server after changing the computer name. I've learned it is not allowed to change the computer name after the first start of PCS 7/ WinCC because you lose your "guarentee" that everything will be working properly. So you can try it but you do it on your own risk. I hope I could help you out a little bit |
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12/3/2014 7:56 PM | |
Joined: 6/23/2008 Last visit: 9/25/2024 Posts: 1168 Rating: (282) |
Hello, at first I would like to point out that the FAQ Heisenberg is refering to says that reinstalling the SQL-Server is needed (in case of changing the computer name) only as soon WinCC was opened once. Quote from the FAQ: "You should no longer change the computer name after installing WinCC and after the first call of the SQL server. If the computer name is to be changed nevertheless, then you must reinstall the SQL server." Quote End. The FAQ tells also how to cross check if instance name of SQL server maches computer name. So we tried it. We cloned a PCS7 PC (from a new installed PC, where WinCC was never opened), and changed the computer name. On the cloned (the duplicate)PC we opened WinCC Explorer (means first call of the SQL server) and then checked SQL instance name with computer name. It was ok, so we decided to use Sysprep(together with Acronis TrueImage)to clone the PCs for creating unique SSIDs. During the first boot, we were ask for the new PC name (due to Sysprep preperation). We were cloning PCS7 Stations in that way for acertain time and a few plants were running already with this kind of cloned PCs, when we noticed that PCS7 is creating windows user groups including the PC name, too (i.e."SQLServerMSSQLUser$<PC Name>$WINCC"). So it came out that we delivered already a few plants with PCs having groups with the name of the "mother PC". With other words; in those PCs the PC name in that groupswere not matching to the real PC name. We didn't had negative effects but to be sure we contacted Siemens Costumer Support with the question if we may change this groupnames or we even have to change the names, so that they are matching to the real PC name again. 1st answer was: "You are not allowed to change the computer name after installation of PCS7 ! See documentation of PCS7 !!!!" So I pointed to the FAQ saying it's ok as long WinCC wasn't started. 2nd answer to that point was: "This FAQ is valid for WinCC but not for PCS7 !!!" We decided to give up cloning PCS7 PCs. So the quintessence: It may be possible, but on your own risk! Don't ask Siemens for support. I have doubts regarding the trainer's statement in Orecas input (had a few trainers telling shi... in firm conviction). Regards, mark |
"Expert" does not necessarily mean Siemens employee. Please cross-check your requirements always with official Siemens documentation. Also "Experts" are pleased about feedback. Please don't send support requests as PM. Questioners who don't follow up their thread will be put to my list of users to be ignored. |
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12/4/2014 12:19 AM | |
Joined: 9/3/2008 Last visit: 9/25/2024 Posts: 928 Rating: (162) |
If we leave out WinCC and just consider SQL server, then Microsoft has some advice regarding what to do if renaming the computer: http://technet.microsoft.com/en-us/library/ms143799(v=sql.105).aspx |
Michael |
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4/20/2021 7:58 AM | |
Joined: 9/9/2015 Last visit: 9/25/2024 Posts: 727 Rating: (278) |
Changing computer name is not recommended as there will be an unknown issue happened later. However, if you would like to change the computer name for a virtual machine or internal use, the below steps are tested by me. STEP BEGIN HERE After changing computer name (At Computer Properties) and restarted, execute below steps: Go to Program -> Siemens Automation -> Communication Settings 1. Go to SIMATIC NET Configuration -> OPC UA certicates -> Right Click -> Recreate UA Certificates 2. Then done. Exit. 3. Open SQL Server 20xx Management Studio 4. Connect as <<HOST NAME>>/WINCC 5. New Query (Or press Ctrl+N) 6. key in "SP_Helpserver" , to check computer name . Press F5 to execute. (Observe the result, row 1 show your network_name recognize by SQL. You need to change the name to new computer name.) 7. then key in "SP_dropserver 'old_name' , F5 to delete the old computer name. 8. then key in "SP_addserver 'new_name', local " , F5 to add new computer name in. 9. Done. Execute "SP_Helpserver" to check the new computer name again. 10. Restart the station and PCS 7 with new computer name is ready to use. 11. Open SIMATIC Manager, Multiproject-> insert your multiproject again. or retrieve your multiprojects again. Hope this is helpful for you and the future forum users. #How to change computer name# |
Last edited by: JazTai at: 10/21/2021 02:44:51Last edited by: JazTai at: 10/21/2021 03:54:24Last edited by: JazTai at: 12/17/2021 01:15:59Please give me 5 stars Rating if my post is helpful for you. :) |
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