Read the end-user license agreement (EULA). Check "I accept..." and click Next.
Before downloading, ensure your PC meets the minimum requirements (typically for PST v4 or higher): siemens primary setup tool download
You will see a list of available versions. It is highly recommended to download the latest version (currently PST v4.4 or newer) to ensure compatibility with modern hardware. Read the end-user license agreement (EULA)
With the rise of SINEC PNI (Primary Network Infrastructure) and cloud-based asset management, PST feels like legacy tech. But here is the truth for 2025+: You will see a list of available versions
If you are supporting brownfield plants (mills, pharma, water treatment), keep PST 4.0 on a hardened USB stick. When the SCADA VM crashes and you need to factory-reset a Scalance switch that won't respond to ping, TIA Portal won't save you. PST will.
Out of the box, a Siemens industrial device (Scalance switch, R/H CPU, or ET 200) is a blank slate. It has no IP address, no device name, and no access to your engineering workstation.
PST bridges that gap. It bypasses the need for DHCP or complex bootstrapping by using the MAC address and DCP (Discovery and Configuration Protocol) . Within 30 seconds of connecting the cable, PST lets you: