Siemens Primary Setup Tool 4.2 Download ((hot)) Jun 2026
Follow these steps to successfully install PST 4.2 on your Windows workstation:
: It uses the DCP (Discovery Control Protocol) to find Siemens hardware—like SCALANCE switches and Ethernet CPs—even if they have no IP address yet. Lightweight Footprint : Unlike the Siemens TIA Portal
: The tool was traditionally supplied on the product CD/DVD included with SIMATIC hardware like Scalance units.
Note: As of 2025, Siemens also offers PST 5.0. However, PST 4.2 is still hosted for legacy support. If you are working with older controllers (S7-300, older SCALANCE X switches), stick with version 4.2. siemens primary setup tool 4.2 download
The software will send a broadcast frame across the local network segment. Within a few moments, a tree structure will populate on the left side of the screen displaying the MAC addresses of all discovered Siemens nodes. 3. Assign IP Parameters
What is installed on your engineering laptop?
Perform a factory reset via PST or change your PC's IP address to match the device's current subnet before updating it. Missing administrative rights. Follow these steps to successfully install PST 4
Click on the provided .zip or .exe download link for version 4.2. Ensure the checksum matches the file details listed on the page to guarantee data integrity.
Ensure it is set to the option that references the or TCP/IP auto-binding for your network card. 2. Scan the Network Launch the Primary Setup Tool 4.2 . Click on the Network menu or press the Browse button.
Some legacy documentation pages still link to the older PST versions, including V4.1 and V4.2. However, PST 4
| | Likely Cause | Suggested Fix | | :--- | :--- | :--- | | "No station detected in the network" | Firewall blocking discovery protocols | Temporarily disable firewall to test. If resolved, add PST ( s7wnpstx.exe ) as an exception or allow UDP ports 102, 49153, and 49154 | | PG/PC interface list empty | Missing or stopped S7DOS Help Service | Check Windows Services for 'S7DOS Help Service' (required for S7 communication). Manually create via command line if missing | | Installation fails on Windows 10 1909 | OS version compatibility issue | Run installer in Windows 7 or 8 compatibility mode, or consider using SINEC PNI on newer OS versions | | Device cannot be found | Incorrect network configuration | Ensure PC IP is in same subnet as device default settings. Use a direct connection without intermediate switches/routers | | No DLC protocol installed | Missing network component on PC | Install DLC protocol for the network adapter being used |
Right-click on Setup.exe and select "Run as administrator."
If the official is unavailable due to access restrictions or region blocks, consider:
The Primary Setup Tool is a free software application developed by Siemens AG. It is designed to detect Siemens industrial devices (PROFINET and Ethernet) on a local network, even if those devices have no pre-assigned IP address.
