groov Epic groov Rio Compare Parts & Accessories Choosing the Right Control System for Today — and Tomorrow Compare groov EPIC, groov RIO, and traditional PLCs — and discover what’s possible when control meets edge intelligence. See Comparison Contact Us Home / Opto 22 / Groov EPIC, RIO and PLC’s Comparison Comparison Next Step Control Systems groov EPIC groov RIO PLC'S IIOT Ready? Fully Integrated Fully Integrated Typically not IoT ready Can you run additional software? Fully Integrated Fully Integrated Typically not IoT ready Python Yes Yes Not natively Java / C++ Limited (Linux SDK access) Limited No Node-RED Embedded Embedded Not supported Ignition / Ignition Edge Supported Limited* (Ignition Edge Only) Not supported SSH access Secure, limited Secure, limited Typically not available Communications OPC UA, MQTT, Modbus, etc. OPC UA, MQTT, Modbus, etc. Some (often via add-ons) Embedded Web Server (groov Manage) Yes Yes No Embedded HMI (groov View) Yes View-only mode External SCADA required Localised I/O Yes (onboard + modules) Yes (onboard multi-signal I/O) Yes (via rack-based modules) Expandable I/O Yes (I/O modules, remote) Not physically expandable Yes (modular expansion) Secure Cloud Connections (TLS, Certs) Yes, built-in Yes, built-in Rarely built-in Control Systems groov EPIC groov RIO PLC'S IIOT Ready? Fully Integrated Fully Integrated Typically not IoT ready Can you run additional software? Fully Integrated Fully Integrated Typically not IoT ready Can you run additional software? Python Yes Yes Not natively Java / C++ Limited (Linux SDK access) Limited Not Node-RED Embedded Embedded Not Ignition / Ignition Edge Supported Limited* (Ignition Edge Only) Not SSH access Secure, limited Secure, limited Typically not available Communications OPC UA, MQTT, Modbus, etc. OPC UA, MQTT, Modbus, etc. Some (often via add-ons) Embedded Web Server (groov Manage) Yes Yes Not Embedded HMI (groov View) Yes View-only mode External SCADA required Localised I/O Yes (onboard + modules) Yes (onboard multi-signal I/O) Yes (via rack-based modules) Expandable I/O Yes (I/O modules, remote) Not physically expandable Yes (modular expansion) Secure Cloud Connections (TLS, Certs) Yes, built-in Yes, built-in Rarely built-in Take The Next Step Connect With a Team Member Ready to streamline your operations? Connect with a team member to explore tailored automation solutions that fit your business needs. Contact Us Get Engineering Support With Miltek Need expert guidance on implementation? Get engineering support with Miltek, our trusted engineering partner for customised automation and integration solutions. Learn More