Package Contents Description
What’s in the file?
- The installation program
- A video showing how to install
- A video with additional details

Important:
If the file you download only has a “Read.txt” file inside, that means the software is broken. We need to upload it again.
What to do if that happens:
- Email us right away
- We will re-upload the files within 1 day
- We will email you when the new download is ready

About Tia Portal Plcsim V20 Download
Tia Portal Plcsim V20 Download is a offline controller simulation tool for TIA Portal from Siemens. This release is used by PLC programmers and commissioning engineers to test S7-1200 and S7-1500 program blocks on a virtual controller before any hardware exists. This page delivers the complete Tia Portal Plcsim V20 package with installation notes you can follow without guesswork.
Key Capabilities of Tia Portal Plcsim V20 Download
- Instant switching between simulation and real target
- Simulation of S7-1200 and S7-1500 controllers inside TIA Portal
- Testing of LAD, FBD, SCL, GRAPH and STL blocks
- Simulated HMI connection for screen testing
- Trace and oscilloscope functions on the virtual CPU
- Fault and diagnostics simulation for error handling code
System Requirements
- Windows 10/11 64-bit (Professional recommended)
- 8 GB RAM minimum, 16 GB recommended
- 15–25 GB free disk space depending on installed options
- A matching TIA Portal installation of the same version is required
- 1920×1080 display or larger
Installation Notes
- Extract the downloaded archive with the password shown at the bottom of this page, using a recent version of WinRAR or 7-Zip.
- Run the installer as administrator and keep the default path unless your company standard requires otherwise.
- If a controller or robot connection will be used, allow the software through the Windows firewall when prompted.
- Temporarily disable antivirus and Windows Defender real-time protection during setup — installers that copy licensed components are frequently false-flagged.
- After installation, re-enable antivirus protection and add the program folder to the allowed list if your policy requires it.
Frequently Asked Questions
Can it simulate PROFINET devices?
The standard version simulates the CPU only; IO devices and network behavior need PLCSIM Advanced.
Does the simulated CPU accept HMI connections?
Yes, WinCC and HMI仿真 connections work for screen testing in the same project.
Is a license dongle required?
PLCSIM is included with TIA Portal professional editions; check your bundle before buying separately.
Does it run in a virtual machine?
Yes, PLCSIM runs inside a VM as long as TIA Portal itself is installed there.

Setup Complest

If you have problems installing, email us.
We can help you remotely and fix the problems.


Tips from Real Projects
A machine builder moved its entire FAT protocol into PLCSIM: every interlock test ran against the simulated CPU weeks before the cabinet arrived, and on-site commissioning shrank to wiring checks and trim values. The discipline that made it work: one shared simulation project, one owner, updated with the program every single day.
Files are delivered on our partner site up-der.com — a free account is required for some downloads.
All files here are WinRAR files.
You must use WinRAR to open them.
Windows’ own unzip tool will not work.
Please download the newest WinRAR.