Product Details
Overview
The 1756-DHRIO is a ControlLogix communications module from Allen-Bradley designed to facilitate DH+ and Remote I/O connectivity. It provides robust data exchange with high reliability and broad environmental tolerance for industrial applications.
Technical Specifications
-
Manufacturer: Allen-Bradley
-
Product Line: ControlLogix
-
Part Number: 1756-DHRIO
-
Product Type: Communications Module
-
On-Board Communication Ports: DH+ and 2x 3-pin Phoenix connectors
-
Supported Protocols: DH+ and Remote I/O
-
Communication Speed: 57.6 kbaud (minimum) – 230.4 kbaud (maximum)
-
Operating Temperature: 0 to 60 °C (32 to 140 °F)
-
Storage Temperature: -40 to 85 °C (-40 to 185 °F)
-
Relative Humidity: Up to 95% RH
-
Vibration Resistance: 2 g, operational up to 500 Hz
-
Weight: 0.24 kg
Features
-
Provides seamless DH+ and Remote I/O communication for ControlLogix systems
-
Compact and lightweight design suitable for modular chassis installation
-
High tolerance for temperature, humidity, and vibration
-
Easy integration with standard Allen-Bradley ControlLogix backplanes
Applications
-
Connecting ControlLogix processors to DH+ networks
-
Remote I/O communication in distributed automation systems
-
Industrial process control environments requiring reliable field communication
FAQs
Q: Which communication protocols are supported?
A: The module supports DH+ and Remote I/O protocols.
Q: What is the maximum operating temperature?
A: The 1756-DHRIO can operate up to 60 °C (140 °F).
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Why Programmable Logic Controllers Drop into Stop Mode: An Expert Analysis
Industrial automation systems rely heavily on Programmable Logic Controllers (PLCs) to maintain uninterrupted production. When a PLC unexpectedly shifts from Run to Stop mode, whole manufacturing lines stall.
As control systems evolve across modern factory automation, understanding the root causes of these interruptions helps engineers minimize costly downtime. This technical guide breaks down why PLCs trip into Stop mode and provides practical strategies to mitigate system faults.
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.