Explains the Modbus protocol, its basic characteristics, and why it is commonly used in industrial automation.
MODBUS protocol
Explains the MODBUS protocol and its key features for network device communication.
Cisco catalyst IE9300 MODBUS TCP registers
Lists the read-only MODBUS TCP registers available on Cisco Catalyst IE9300 switches. Provides register address details, descriptions, formats, and values for both system and port information registers.
Interpreting the port state value
Lists the meanings of port state values, including the interpretation of interface and line protocol states for IE9300 series switches.
Configure the MODBUS TCP server
Configure the MODBUS TCP server on a switch to enable communication with MODBUS clients, set TCP ports, and adjust connection limits.
MODBUS display commands
This topic explains how to use commands to display and manage MODBUS TCP server information and statistics on IE9300 switches.
Feature history
Lists the release details for features described in this guide, including availability and key feature information.