1756-DHRIO Allen Bradley Rockwell DeviceNet Communication Interface Module

Product Parameters

Model: 1756-DHRIO

Type: ControlLogix DH+/RIO Bridge/Scanner Module

Communication Protocols: Data Highway Plus (DH+), Remote I/O (RIO)

Ports:

2 DH+/RIO ports (Channel A and B, each with a 3-pin terminal for wiring)

1 8-pin mini-DIN port (parallel to Channel A)

Communication Rates:

57.6 Kbps, 115.2 Kbps, or 230.4 Kbps (depending on cable length)

Connection Capacity:

Up to 32 logical rack connections per RIO channel

16 block-transfer connections per RIO channel

32 Logix connections total

Current Draw:

850 mA @ 5.1V DC

1.7 mA @ 24V DC

Power Dissipation: 4.3 W

Thermal Dissipation: 15.4 BTU/hr

Isolation Voltage: 30V (continuous), basic insulation type, tested at 500V AC for 60 s

Cable Type: Belden 9463 twinaxial, 0.52 mm² (20 AWG), rated at 200°C (392°F);  Phoenix MVSTBR2.5/3-ST BK AU connector

Mounting: Any slot in a ControlLogix chassis (e.g., 1756-A4, A7, A10, A13, A17)

Power Supply Compatibility:

Standard: 1756-PA72/C, 1756-PA75/B, 1756-PB72/C, 1756-PB75/B

Redundant: 1756-PA75R, 1756-PB75R, 1756-PSCA2

Operating Temperature: 0°C to +60°C (32°F to +140°F)

Storage Temperature: -40°C to +85°C (-40°F to +185°F)

Relative Humidity: 5–95% non-condensing

Certifications: CE, CSA, CUL, KC, MARINE, RCM, UL

Terminal Block Torque: 0.56–0.79 N-m (5–7 lb-in)

Functions

DH+ Communication: Facilitates messaging between ControlLogix controllers, PLCs, SLCs, and other DH+ devices for data exchange and control.

Remote I/O Scanner/Adapter: Acts as a scanner to poll RIO devices or an adapter to connect to an existing RIO network, supporting up to 32 logical racks and 16 block transfers per channel.

Data Transfer: Transfers analog, digital, block, and specialty data without message instructions, supporting Control and Information Protocol (CIP) and DH+ messaging.

Multi-Network Routing: Routes messages through up to three chassis and four communication networks, enhancing system flexibility.

Diagnostics: Provides digital and LED displays for status monitoring and fault detection.

Removal/Insertion Under Power (RIUP): Supports installation/removal with chassis power on, provided safety precautions are followed to avoid electrical arcing in non-hazardous areas.

Legacy Integration: Bridges modern ControlLogix systems with legacy PLC-5, SLC 500, or RIO devices, extending system lifespan.

Application Scenarios

Manufacturing Automation: Connects ControlLogix controllers to PLC-5 or SLC 500 systems in automotive or electronics assembly lines for coordinated control and data acquisition.

Process Control: Used in industries like oil and gas, chemical, or water treatment to link distributed I/O devices with modern controllers.

Legacy System Upgrades: Facilitates phased modernization by bridging new ControlLogix systems with existing RIO or DH+ networks, avoiding full system replacement.

Material Handling: Supports conveyor systems or automated guided vehicles (AGVs) by enabling reliable data exchange with remote I/O devices.

HMI/SCADA Integration: Connects ControlLogix systems to HMIs or SCADA for real-time monitoring and control in industrial plants.

General Automation: Suitable for applications needing robust communication with legacy Allen-Bradley devices in standard industrial environments (0°C to +60°C).

Advantage Products:

All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the other conditions are needed, Used, Open-box, Refurbished, etc.

Many Available just wait for you, feel free to ask to get better deal!!!

Bou L(Sales Manager)            

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