Siemens 6FM1463-3SA21 | WF 463S External Memory Module

Peripheral Memory Expansion for SIMATIC S5 Systems

The 6FM1463-3SA21 external memory module provides peripheral memory expansion for the SIMATIC S5 automation platform. This module, also known as the WF 463S, features a single serial interface for seamless integration with S5 controllers . It serves as a reliable storage solution for system programs, parameter data, and user applications.

Technical Specifications

Parameter	Specification
Manufacturer	Siemens
Product Line	SIMATIC S5 / WF 463S
Model	6FM1463-3SA21
Product Type	External Memory Module
Memory Type	Peripheral Memory (WF 463S)
Interface	1 serial interface
Weight	500 g (0.5 kg)
Compatibility	SIMATIC S5 PLC systems
Certifications	CE, UL, CSA

Memory Functionality and Interface

The 6FM1463-3SA21 provides external peripheral memory for expanding the data storage capacity of SIMATIC S5 systems. A single serial interface connects the module to the host controller, simplifying integration. Consequently, this module handles storage of programs, parameters, and configuration data. The WF 463S designation indicates it is part of the S5 peripheral memory family.

Physical Characteristics and Installation

The 6FM1463-3SA21 weighs approximately 500 g, making it a lightweight addition to the system . Its compact design allows easy installation within control cabinets. The module’s robust construction withstands typical industrial conditions. This unit interfaces with the controller via a serial connection.

Product Availability

The 6FM1463-3SA21 is available through various channels, including exchange units and refurbished stock . Many suppliers offer a 24-month warranty on these legacy modules