What it does - 16 inputs can remotely control 16 outputs on another board via the RS485 bus. The relevant registers must be configured. - Modbus RTU compatibility: - Supports Modbus RTU commands - Function codes 03 and 06 registered - Supports 16 function codes - Command input methods: - Modbus commands can be entered from terminals (Assistant) or using Modbus Poll - Delay function: - Under the command "Delay" the delay can be set up to 255 seconds Key benefits - Enables remote IO expansion over a standard RS485 network, reducing wiring and enabling centralized control of distributed devices - Easy integration with existing Modbus-based controllers, PLCs, or SCADA systems for seamless automation - Flexible testing and commissioning with familiar Modbus tools and terminal interfaces - Precise timing control with configurable delays up to 255 seconds Technical and practical notes - Compatibility: RS485 bus communication and Modbus RTU support facilitate integration with a wide range of industrial devices - Configuration: Ensure the relevant registers are set to enable remote control of the connected outputs - Accessibility: Commands can be issued via terminal interfaces or common Modbus polling tools for development, testing, and operation Use scenarios - Industrial automation: remotely drive relays or actuators on a secondary IO board from a central controller, reducing cabling complexity - Building management: control indicators, lights, or other actuators across a distributed installation using standard Modbus communications - Test and development: verify IO mapping and timing by issuing Modbus commands with Modbus Poll or terminal interfaces, and validate delay behavior up to 255 seconds