9AE4122-2AA00 SIEMENS Exclusive SIMIT PB-2 Unit for PROFIBUS Simulation Original Brand New

9AE4122-2AA00 SIEMENS Exclusive SIMIT PB-2 Unit for PROFIBUS Simulation Original Brand New

The SIEMENS 9AE4122-2AA00 SIMIT Unit PB-2 is an advanced simulation interface designed to simulate the real-time behavior of up to 125 PROFIBUS I/O devices per channel—offering a total of two channels in one unit. Tailored for engineering teams and developers, this original brand-new module allows for high-fidelity hardware-in-the-loop simulation during machine development phases, including testing and commissioning.

Ideal for industrial environments and R&D, this unit supports simulation firmware (FW) and offers seamless integration into existing Siemens automation systems, including SIMATIC and SINUMERIK. It enables simulation of machine behavior before physical prototypes are built, reducing time, cost, and risk by detecting system errors early.

Overview

SIMIT supports a wide range of interfaces such as PROFIBUS, PROFINET, PLCSIM, OPC, and more. By allowing automation systems to connect with virtual models of machines, SIMIT enables full-cycle simulation—from design to operation. This allows engineering teams to visualize, test, and refine automation systems before deployment, even integrating CNC and HMI interfaces through Shared Memory or SINUMERIK Run MyCC.

Design

The 9AE4122-2AA00 is built with simulation performance and flexibility in mind. The user-friendly SIMIT graphical interface allows operators to design models using modular drag-and-drop components. Highlights include:

• Reaction-free simulation of 125 PROFIBUS devices per channel
• 3D VRML viewer for machine visualization
• Automatic generation of signal lists from SIMATIC Manager
• Support for external coupling, PLCSIM Advanced, OPC UA, and more
• Bulk engineering and shared memory interface for high-performance coupling
• Runtime component editor and scripting environment

Product Code: 9AE4122-2AA00

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