HS4 users: This plugin was created for HS3 and should run on your HS4 system. However, the setup/config pages are not optimized for use on mobile devices. IMPORTANT: This software plugin is no longer supported. It will remain available for download in the HS3 updater but will not receive any future updates. This software plugin is designed to allow HomeSeer systems to communicate with PLC and automation equipment based on the Modbus protocol. Main Features Interface HS3 with Modbus RTU Serial & TCP/IP Support Bi-directional communication between HS3 and Modbus Supports Coils, Discrete Inputs, Input Registers, and Holding Registers Requirements HomeSeer HS3 or HS3PRO Compatible with Windows and Linux Related Links (Photos / Videos / Diagrams / Forms) Forum (No Support)