1756-RIO Allen Bradley Rockwell ControlNet Communication Interface Module

Product Parameters Model: 1756-RIO Type: ControlLogix Remote I/O Communication Module Communication Protocol: Remote I/O (RIO) Port: 1 RIO port (uses 0.519 mm² / 20 AWG Belden 9463 copper twinaxial cable, also known as Blue Hose) Connection Capacity: Supports up to 32 physical racks (0–76), any combination of rack size and block transfers Scheduled Connections: Up to 10 scheduled I/O connections Current Draw: 450 mA @ 5.1V DC 5 mA @ 24V DC Power Dissipation: 2.5 W Thermal Dissipation: 8.5 BTU/hr Isolation Voltage: 50V (continuous), basic insulation type, RIO communication lines to backplane, tested at 500V AC for 60 s Communication Rate: Up to 230.4 Kbps Mounting: Single-slot module, installs in any slot of ControlLogix chassis Power Supply Compatibility: Standard: 1756-PA72/C, 1756-PA75/B, 1756-PB 72/C, 1756-PB75/B, 1756-PC75/B, 1756-PH75/B Redundant: 1756-PA75R, 1756-PB75R, 1756-PSCA2 Operating Temperature: 0°C to +60°C (32°F to +140°F) Certifications: CE, CUL, KC, RCM, UL Functions Scanner/Adapter Modes: Operates as a scanner (polls I/O modules to gather data) or adapter (connects to an existing system scanner) on the RIO network, supporting seamless integration with legacy systems. Data Transfer: Supports block transfers, digital, analog, and specialty data without requiring message instructions, enabling efficient data exchange between controller and I/O adapters. High Compatibility: Interfaces with PLCs, SLCs, and other ControlLogix controllers, supporting simplex and redundant controller topologies. HMI/SCADA Integration: Facilitates communication with Human Machine Interfaces (HMIs) and Supervisory Control and Data Acquisition (SCADA) systems via Allen-Bradley communication cards. Diagnostics: Provides comprehensive I/O diagnostics for detecting system and field-side failures, with digital and LED displays for status monitoring. RIUP Support: Allows removal and insertion under power (RIUP) for maintenance, provided safety precautions are followed to avoid electrical arcing. Legacy Bridging: Connects modern ControlLogix platforms to legacy RIO devices, extending system lifespan. Application Scenarios Manufacturing Automation: Connects ControlLogix processors to distributed I/O modules in automotive or electronics assembly lines, enabling precise control and data acquisition. Process Control: Used in industries like oil and gas, chemical, or water treatment to link PLCs with remote I/O devices for reliable monitoring and control. Legacy System Upgrades: Bridges modern ControlLogix systems with older RIO-based PLCs or SLCs, facilitating phased upgrades without replacing existing infrastructure. Material Handling: Supports conveyor systems or automated guided vehicles (AGVs) by providing reliable data transfer for distributed I/O. HMI/SCADA Systems: Enables integration with visualization and control systems for real-time monitoring in industrial plants. General Automation: Suitable for applications requiring robust I/O communication in standard industrial environments (0°C to +60°C).

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