SLF

Modbus Time Out

Schneider Electric · Altistart 22 Soft Starter

What does SLF mean?

The Modbus serial communication link experienced a timeout, meaning the soft starter did not receive an expected message or acknowledge within the configured timeframe. This indicates a disruption or issue with the communication network.

Complete Troubleshooting Guide

  1. 1

    Check the RS485 Modbus connection wiring for proper integrity, termination, and absence of physical damage or electromagnetic interference.

  2. 2

    Verify the Modbus network parameters (baud rate, parity, address) are correctly configured on both the soft starter and the master device.

Source: Schneider Electric Manual