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Allen-Bradley 1788-EN2PAR Redundant EtherNet/IP to PROFIBUS PA Linking Device – Technical Specifications and FAQ
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Model | 1788-EN2PAR |
| Product Name | Redundant EtherNet/IP to PROFIBUS PA Linking Device |
| Product Type | Industrial network gateway / linking device |
| Ethernet Interface | Redundant EtherNet/IP |
| Ethernet Connectors | RJ45 |
| Ethernet Cable | CAT5 STP/UTP |
| Fieldbus Protocol | PROFIBUS PA |
| Fieldbus Ports | 2 PA trunk ports |
| Supported Devices | Up to 24 field devices, depending on network configuration |
| Network Topology | Ring, split, and dual-bus configurations |
| Redundancy | Supports redundant Ethernet media, PA fieldbus media, and linking devices |
| Input Power Supply | 24–32 V DC, 0.75 A, Class 2 / SELV |
| PA Power Output | 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 | Panel or DIN rail |
| Enclosure Rating | Open-style; no IP protection rating |
| Operating Temperature | 0 to +60°C (32 to +140°F) |
| Temperature Code | T4 |
| Dimensions | 152 × 80 × 136 mm |
| Weight | 0.54 kg |
| Country of Origin | Not reliably confirmed; check the product nameplate |
| Lifecycle Status | End of Life, November 1, 2021 |
| Recommended Replacement | Aparian A-PAL/B PROFIBUS PA linking module |
FAQ
FAQ
Q1: What is the Allen-Bradley 1788-EN2PAR used for?
A: It provides a gateway between EtherNet/IP and PROFIBUS PA networks, allowing Logix-based control systems to communicate with PROFIBUS PA field instruments.
Q2: What does the “R” in 1788-EN2PAR mean?
A: It identifies the redundant version, which supports redundant network configurations for improved communication availability.
Q3: How many PROFIBUS PA devices can it support?
A: It supports up to 24 field devices, depending on the network topology, fieldbus power budget, and device current consumption.
Q4: What power supply does the 1788-EN2PAR require?
A: It requires 24–32 V DC input power at 0.75 A. It also provides PROFIBUS PA trunk power.
Q5: What Ethernet cable does it use?
A: It uses CAT5 shielded or unshielded twisted-pair Ethernet cable with RJ45 connections.
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-EN2PAR discontinued?
A: Yes. Rockwell Automation identifies the legacy 1788-EN2PAR as End of Life effective November 1, 2021. The recommended replacement is the Aparian A-PAL/B module.
Q8: What are the dimensions and weight for shipping?
A: Exact dimensions and weight are not confirmed in the official technical documentation. One supplier lists a shipping package of approximately 300 × 200 × 200 mm and 2 kg, but these figures should be treated as estimates rather than manufacturer specifications. Verify the actual package 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.
