Siemens FM351 Positioning Module 6ES7351-1AH01-0AE0 for S7-300

Description

The Siemens 6ES7351-1AH01-0AE0 is the FM351 function module, a specialized component for the SIMATIC S7-300 PLC series. It is engineered for precise fixed-speed positioning applications, offering control for up to two independent channels. This module is an excellent choice for automating tasks that require rapid and creep speed drive control, such as material handling systems, feed units, and basic robotic movements. As an obsolete part, it serves as a critical spare part for maintaining legacy automation systems.

Specifications

• Manufacturer: Siemens
• Product Line: SIMATIC S7-300
• Module Type: FM351 Function Module (Fixed Speed Positioning)
• Part Number: 6ES7351-1AH01-0AE0
• Number of Channels: 2
• Supply Voltage: 24V DC
• Output Current: 0.5A per digital output (resistive load)
• Total Load Current: 3A max

Label Info

• MLFB: 1P 6ES7 351-1AH01-0AE0
• Serial Number: S C_L3532489
• Hardware Version (E-Stand): 02

Application

This module is commonly used in industrial automation for controlling conveyor belts, positioning tables, feeders, and other machinery where simple point-to-point movement with fixed speeds is required.

Country of Origin

Made in Germany.

CO2 Impact

By reusing this component, you are actively contributing to the circular economy and avoiding approximately 10 kg of CO2 emissions that would be generated from the production of a new one.

Availability

This item is a tested, used product. While obsolete, it is available from our stock to ensure the longevity of your existing S7-300 installations. Order now from PLC2Day for expert support and fast delivery.

FAQ

The FM351 module is configured using Siemens STEP 7 (Classic) software, along with the specific 'FM 351 Positioning' configuration package which needs to be installed.

No, the FM351 is designed for use with incremental encoders or simple proximity switches (BEROs) to track position. It does not have a native interface for absolute encoders like SSI or EnDat.

The FM351 is for positioning with simple, fixed-speed (rapid/creep) drives using digital outputs. The FM353 is a more advanced stepper motor control module, providing pulse and direction signals for direct stepper drive control.

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Last Update: Friday, March 13, 2026