The GE ST-5351, also cataloged as the ST-5351 SSI Interface Module, operates as a dedicated hardware component for position feedback acquisition within RSTi/PacSystems distributed I/O networks. It decodes synchronous serial data streams from absolute position encoders and linear sensors to provide direct physical/electrical execution. The module synchronizes sensor telemetry with backplane scan intervals to transfer precise angle and displacement data to the system controller.

Hardware Specifications

Backplane Bus Velocity and Deterministic Networks

The module communicates across the RSTi backplane bus to deliver deterministic serial frame decoding directly to the primary CPU. Real-time clock generator circuits manage SSI clock generation, preventing frame jitter during high-speed motion tracking. Embedded firmware handles Gray-to-binary data conversions internally, eliminating PLC processing overhead and preserving bus throughput across the distributed I/O drop.

Frequently Asked Questions

Q: What sensor types connect directly to the ST-5351 input module?

A: The module interfaces with absolute optical or magnetic encoders and linear transducers utilizing standard SSI protocol frames.

Q: How are transmission baud rates configured on the ST-5351?

A: Baud rates, including 62.5 kbps, 100 kbps, and 125 kbps, are selected through hardware configuration tags within the PLC programming environment.

Field Installation Guidelines

Snap the slice module directly onto a 35 mm DIN-rail alongside adjacent RSTi I/O modules until the backplane connector latches securely. Connect absolute encoder clock (CLK+, CLK-) and data (DATA+, DATA-) signals using twisted-pair, individually shielded cable. Earth the cable shield at the terminal block grounding clip to maintain signal integrity and prevent high-frequency noise interference on serial data lines.