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Allen-Bradley 1788-CN2PAR Redundant ControlNet to PROFIBUS PA Linking Device – Technical Specifications and FAQ
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Model | 1788-CN2PAR |
| Product Name | Redundant ControlNet to PROFIBUS PA Linking Device |
| Product Type | Industrial network gateway |
| ControlNet Interface | Redundant ControlNet network |
| PROFIBUS Interface | PROFIBUS PA |
| Network Function | Connects ControlNet systems to PROFIBUS PA field devices |
| ControlNet Connectors | BNC coaxial connectors |
| Power Supply | 24–32 V DC, 0.75 A |
| PROFIBUS PA Power | 0.5 A at 24 V DC (single trunk); 0.4 A (dual trunk) |
| Power Consumption | 260 mA at 24 V DC, without field devices |
| Power Dissipation | 12.24 W at 24 V DC |
| Isolation Voltage | 30 V continuous, basic insulation |
| Mounting | DIN rail |
| Enclosure Rating | Open-style; no enclosure rating |
| Operating Temperature | 0 to +60°C (32 to +140°F) |
| Relative Humidity | 5–95%, non-condensing |
| Temperature Code | T4 |
| Dimensions (H × W × D) | Approx. 152 × 80 × 136 mm |
| Weight | Approx. 0.57 kg (distributor-listed) |
| Country of Origin | USA (supplier-listed; verify product nameplate) |
| Lifecycle Status | End of Life, November 1, 2021 |
| Replacement | Aparian A-PAL/B PROFIBUS PA linking module |
FAQ
FAQ
Q1: What is the Allen-Bradley 1788-CN2PAR used for?
A: It provides a communication gateway between a ControlNet network and PROFIBUS PA field devices, allowing Logix-based control systems to communicate with process instrumentation.
Q2: What does the “R” in 1788-CN2PAR mean?
A: It identifies the redundant ControlNet version, which supports redundant ControlNet network connections.
Q3: Which communication protocols does it support?
A: It supports ControlNet on the controller side and PROFIBUS PA on the field-device side.
Q4: What power supply does the 1788-CN2PAR require?
A: It requires an external 24–32 V DC supply, rated at 0.75 A. It also supports PROFIBUS PA trunk power.
Q5: How many PROFIBUS PA devices can it connect?
A: The supported number depends on the network configuration, fieldbus current consumption, cable length, and power budget. Check the network design documentation before determining the maximum device count.
Q6: What is its operating temperature range?
A: The specified operating temperature range is 0 to +60°C (32 to +140°F).
Q7: Is the 1788-CN2PAR discontinued?
A: Yes. Rockwell Automation identifies the legacy 1788-CN2PAR as End of Life effective November 1, 2021. The recommended replacement is the Aparian A-PAL/B.
Q8: What are the dimensions and weight for shipping?
A: Distributor information lists approximately 152 × 80 × 136 mm and 0.57 kg net weight. These figures should be treated as reference values; confirm actual packaging dimensions and gross weight before arranging international freight.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
