Siemens G26043-A3347-P101 SSI Module

Technical Overview

The G26043-A3347-P101 SSI module provides high-precision position feedback for SIMATIC S5 automation systems. This module interfaces with absolute encoders and linear scales using the synchronous serial interface (SSI) protocol. It reads 24-bit or 25-bit position data from multiple encoder channels. The onboard circuitry converts serial data into a parallel format for the controller’s internal bus.

Key Technical Specifications

SSI Protocol and Data Acquisition

The module generates the clock signal that synchronizes data transmission from the encoder. It reads position data in Gray code or binary format, depending on the encoder type. The SSI protocol ensures robust data transfer over cable lengths up to 400 meters.

Encoder Compatibility and Connectivity

This module works with most absolute SSI encoders and linear scales on the market. It supports both single-turn and multi-turn encoders for diverse positioning applications. The RS-422 differential signals provide excellent noise immunity in industrial environments.

Integration with S5 Controller

The module connects to the SIMATIC S5 backplane bus for power and data exchange. Engineers can configure the module’s parameters using STEP 5 software. The processed position data is then available as digital values for control logic.