The is a legacy utility primarily used for assigning IP addresses and PROFINET names to SIMATIC NET network components, Ethernet CPs, and gateways.

The PST is still available as a "cost-free utility" for specific legacy tasks, but Siemens has moved its focus to more advanced commissioning tools.

Siemens Primary Setup Tool (PST) is a specialized utility used to assign network parameters—such as IP addresses and device names—to SIMATIC NET industrial Ethernet components. While widely used for years, it has largely been superseded by newer software for modern operating systems. Core Functionality Initial Addressing

In 2021, a major European HVAC contractor suffered a ransomware outbreak traced to a field technician who downloaded a “free” copy of a Siemens commissioning tool from a file-sharing site. The tool had been repackaged with Emotet malware.

The interface provides a clear table view of all connected devices. Users can click on a specific MAC address and change the device name, IP address, subnet mask, and default gateway without needing a console cable.

serves as a vital utility for engineers and technicians tasked with the initial configuration of SIMATIC NET network components, Ethernet CPs, and gateways. By providing a simplified interface for assigning essential parameters such as IP addresses without the need for full engineering suites like STEP 7, the PST bridges the gap between physical installation and system integration. Core Functionality and Purpose

How to download the primary setup tool ? - Siemens SiePortal