Benshaw Modbus RTU Card User Guide


This document provides complete instructions for installing, configuring, and operating the Benshaw Modbus RTU communications option for EMX4e and EMX4i soft starters. It includes connection diagrams, parameter configuration tables, register maps, trip codes, and technical specifications for Modbus RTU integration in motor control systems.

Key Points

  • Designed for EMX4e (basic) and EMX4i (advanced) Benshaw soft starters.
  • Includes setup instructions for Modbus parameters, including address, baud rate, parity, and timeout.
  • Lists Modbus error and trip codes for diagnostics and troubleshooting.
  • Fully compliant with CE and RoHS standards for industrial environments.
  • Provides detailed installation and wiring procedures for the Modbus RTU expansion card.
  • Offers register tables for command, configuration, and status reporting in both Standard and Legacy modes.
  • Details safe operating practices, network configuration requirements, and parameter management.
  • Published by Benshaw, Inc., a leader in applied motor control solutions.