*First it depends on the hardware you use. What hardware do you use currently? Say for instance S7-1500 will be supported in TIA Portal v12 onward. Similarly new hardware's is supposed to get integrated in v12 rather than v11. In general TIA Portal v12 is the successor of TIA Portal v11
also an excerpt from SIOS
*V12 more "stable" as v11. It brings new things but also little improvements, like a new version of PID_Compact, where you can set the desired behavior to unspected situation.
[leV12[/left]
Hardware requirements
Your PC must meet the following minimum requirements for installing STEP 7 Basic / Professional V12:
Processor: Core i5, 2.4 GHz or comparable
Main memory:
3GB for PC/PG hardware 32-bit operating system
8GB for PC/PG hardware 64-bit operating system
Hard disk: 250 GB S-ATA HDD
Graphics: min. 1280x1024
Screen: 15" SXGA + Display (1400 x 1050)
Software requirements
STEP 7 Professional / Basic V12 is released for the following operating systems (32-bit, also 64-bit for Windows 7):
MS Windows XP Home SP3 (only for STEP 7 Basic)
MS Windows XP Professional SP3
MS Windows 7 Home Premium SP1 (only for STEP 7 Basic)
MS Windows 7 Professional SP1
MS Windows 7 Enterprise SP1
MS Windows 7 Ultimate SP1
MS Windows 2003 Server R2 Standard Edition SP2 (only for STEP 7 Professional)
MS Windows Server 2008 Standard Edition SP2 (only for STEP 7 Professional)
Parallel installation of STEP 7 (TIA Portal) V12 and other versions of STEP 7
You can also install other versions of STEP 7 on your computer in parallel to STEP 7 (TIA Portal) V12:
STEP 7 (TIA Portal) V11
STEP 7 V5.4 or V5.5
STEP 7 Professional 2006/2010
STEP 7 Basic V10.5
STEP 7 Micro/WIN
Compatibility with other SIMATIC HMI products
Y
ou can install the following SIMATIC HMI products on your hard disk in parallel to STEP 7 (TIA Portal) V12:
WinCC flexible (from 2008) and
WinCC (from V7.0+SP2)
WinCC and WinCC TIA cannot be installed simultaneously on one and the same computer. WinCC flexible and WinCC TIA can be installed simultaneously on one and the same computer.
Note on WinCC and WinCC flexible
You can install WinCC flexible and WinCC (TIA Portal) simultaneously on one and the same computer.
You cannot install WinCC and WinCC (TIA Portal) simultaneously on one and the same computer
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[size=24]Compatibility with projects from STEP 7 V5.4 and V5.5
Using the "Project > Migrate Project..." function in STEP 7 V12 you can migrate projects created with STEP 7 V5.5 and STEP 7 Professional 2010 to STEP 7 V12. The STEP 7 projects that contain a configuration with WinCC or WinCC flexible can also be migrated to the TIA Portal V12 with the included WinCC flexible parts. Included configurations created with WinCC V7.0+SP2 or lower are currently not migrated as well. The components below must be installed on your computer for this:
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موضوع: عملاق شركة سيمنز TIA Portal V12+ Key 
الجمعة 31 يناير 2014 - 8:13
