STEP 7 Professional V5.5 software is Siemens software used to program the S7-300, S7-300 PLC. This is the version used for Windows 32bit (64bit) computers.
Simatic Step 7 Professional V5.5 supports the following operating systems:
+ Windows XP Professional SP2
+ Windows XP Professional SP3
+ Windows 7 Professional/Enterprise/Ultimate (32 Bit)
+ Windows 7 Professional/Enterprise/Ultimate SP 1 (32 Bit)
+ Windows Server 2003 SP2
+ Windows 7 Professional/Enterprise/Ultimate (64 Bit)
+ Windows 7 Professional/Enterprise/Ultimate SP 1 (64 Bit)
+ Windows Server 2008 Standard Edition R2 (64 Bit)
+ Windows Server 2008 Standard Edition R2 SP1 (64 Bit)
Simatic Step 7 Professional V5.5 includes the following software packages:
+ Step 7 Basic Software: Hardware configuration, programming Ladder, FBD, IL
+ S7-Graph: Graphical programming
+ S7-SCL: Programming in SCL language
+ S7-PLCSIM: Simulation Software Simulator
Link Download Software 
>>> Download STEP 7 Professional V5.5 SP3
>>> Download S7-PLCSIM S7-300/S7-400
Password Extract: plc247.com
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Thanks for reading my writing. If the download link is broken, please comment below the article, plc247.com will correct it 24 hours before reading the article
OK, everything is fine, but what a hell is a password?!
password: plc247.com
I have downloaded the Step 7 v5.5.
In installation it says 14 days trial version.
How to installed the license key?
Please use software SIM_EKB_Install
Download S7-PLCSIM S7-300/S7-400 contains the same file as Download STEP 7 Professional V5.5 SP3
SIM_EKB_Install missing
OK! Now i will check
Which password is used for unzipping Step 7 v5.6 for windows 10
password: plc247.com
How to use full version? I only have 14 days
using sim ekb software
I have downloaded the step 7 file and extracted it but when I go to its setup.exe to follow the procedure to do the installation; when I click on sertup.exe a language shows on the screen which I don’t understand. I find it difficult doing the installation
what OS your using?
I got the same problem sir ( the software cannot be installed on your computer with the operating system windows 8 professional edition ×64 . Help me sir
aqui acontece a mesma coisa, pede para reiniciar o pc antes de instalar, porem reinicio mas mesmo assim aparece a mensagem
english please sir
Does it has S7-Technology
i will upload when posible
is it a full or trial version?
Full version sir
I am on windows 11 home, will it work?
yes sir
The download not open
what happen for you
please reupload downlink
Download link at the bottom of the article
whats the password for the zip file
password: plc247.com
Mi również nie działa na Windowsie 10. Gdy klikam setup otwiera się okno i chce żeby zainstalować jeden z poniższych systemów. Co robić?
please comment via english