Overview
The Allen-Bradley 1756-DHRIO module provides seamless communication for ControlLogix systems. It supports Data Highway Plus (DH+) and Remote I/O messaging, enabling up to 32 Logix connections. Moreover, the module interfaces with Flex I/O, POINT I/O, and various controllers, providing versatile network connectivity. Therefore, it is ideal for distributed control and industrial automation environments.
Technical Specifications
| Attribute | Details |
|---|---|
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number | 1756-DHRIO |
| Series | ControlLogix |
| Module Type | Data Highway/Remote I-O Communication Module |
| Location | 1756 ControlLogix Chassis |
| Communication Speeds | 57.6 Kbaud, 115.2 Kbaud, 230.4 Kbaud |
| Backplane Current | 5 V: 1.7 mA; 24 V: 850 mA |
| Power Dissipation | Max 4.5 W; Thermal: 15.4 BTU/hr |
| Operating Temperature | 0–60 °C (32–140 °F) |
| Slot Width | 1 |
| Weight | 0.64 lb (0.293 kg) |
| Enclosure | Open |
| Recommended Cable | Belden 89463 twinaxial, 0.52 mm² (20 AWG), 200 °C (392 °F) |
| Maximum Cable Length | 3048 m (10000 ft), 1524 m (5000 ft), 762 m (2500 ft) |
| Spare Connector Kit | Phoenix MVSTBR2.5/3-ST BK AU |
Functional Highlights
- High Connection Capacity: Supports up to 32 Logix connections for extensive network communication.
- Flexible Communication: Handles DH+, Remote I/O, and CIP Messaging across multiple devices and networks.
- Robust Performance: Operates safely from 0 to 60 °C with low power and thermal dissipation requirements.
- Industrial Compatibility: Works with Flex I/O, POINT I/O, and other Allen-Bradley controllers for seamless integration.
- Installation Safety: Requires proper cables and connectors, ensuring secure and reliable network operation.
Applications
- Control Systems: Integrates with PLCs, SLCs, and distributed I/O networks for process control.
- Industrial Automation: Facilitates communication in manufacturing, chemical, and processing plants.
- Network Expansion: Allows seamless integration of remote devices and controllers across DH+ or Remote I/O networks.
FAQ
Q1: Is the 1756-DHRIO brand new?
Yes, all units are 100% original Allen-Bradley 1756-DHRIO modules, tested for industrial reliability.
Q2: What is the typical delivery time?
Orders ship within 3 days to 2 weeks depending on quantity. Standard carriers include DHL, FedEx, and UPS.
Q3: Which devices can this module connect to?
It supports PLCs, SLCs, Flex I/O, POINT I/O, and various controllers using DH+ or Remote I/O messaging.
Q4: Are there specific cables required?
Yes, use Belden 89463 twinaxial cable rated 0.52 mm² (20 AWG) at 200 °C for optimal communication.
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