Allen-Bradley 1756-CNB ControlLogix ControlNet Bridge Module
- Brand
- Allen-Bradley
- Model
- 1756-CNB
- GEARWELL SKU
- GWP-000014561
- Category
- Industrial Communication
Key specifications
- Interface
- 1 ControlNet BNC
- Description
- ControlNet Bridge Module (40-48 connections)
- Current draw
- 970mA @ 5.1V DC, 1.7mA @ 24V DC
- Communication
- ControlNet
- Catalog number
- 1756-CNB
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← Back to productsProduct overview
The Allen-Bradley 1756-CNB is the standard (non-redundant) ControlLogix ControlNet communication module. It runs at 5 Mbps, handles 40…48 Logix communication connections and up to 64 connections, and up to 99 nodes. It has 1 ControlNet BNC port and 1 NAP RJ45 port for the 1786-CP cable, takes 1 slot in any slot of a 1756-A4, 1756-A7, 1756-A10, 1756-A13 or 1756-A17 chassis and weighs about 0.26 kg. Rockwell now lists the ControlNet network as a legacy network.
Technical reference
| Product name | Allen-Bradley 1756-CNB ControlLogix ControlNet Bridge Module |
|---|---|
| Brand | Allen-Bradley |
| Model | 1756-CNB |
| Category | Industrial Communication |
| Interface | 1 ControlNet BNC |
| Description | ControlNet Bridge Module (40-48 connections) |
| Current draw | 970mA @ 5.1V DC, 1.7mA @ 24V DC |
| Communication | ControlNet |
| Catalog number | 1756-CNB |
| Power dissipation | 5.1 W |
| Transmission rate | 5000 kbps |
| Number of nodes, max | 99 nodes |
| Operating temperature | 0 to 60 °C |
| Lifecycle status (Rockwell Automation) | Discontinued |
| Logix communication connections range | 40...48 |
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