WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
The Allen-Bradley 1788-EN2PAR is a network linking device designed to provide seamless communication between EtherNet/IP and PROFIBUS PA networks, enabling integration of PROFIBUS field devices into modern industrial automation systems. This linking device is widely used in process industries such as oil and gas, chemical production, and pharmaceuticals, where connecting legacy PROFIBUS PA devices to Ethernet/IP control networks is essential for advanced control and monitoring.
- 1788-EN2PAR
The 1788-EN2PAR facilitates the smooth integration of PROFIBUS PA field instruments like pressure transmitters, flow meters, and temperature sensors into the EtherNet/IP-based control environment. This capability is critical in industrial automation systems where distributed control architecture and real-time data exchange play major roles in process efficiency and safety. The device supports redundant networking configurations, enhancing system reliability and minimizing downtime in critical control processes.
Within an industrial control system architecture, the 1788-EN2PAR acts as a gateway bridging the gap between two dominant industrial communication protocols. It connects to EtherNet/IP networks on one side and PROFIBUS PA device networks on the other, translating data formats and communication signals bidirectionally in real time. This linking device is engineered for easy integration with Rockwell Automation’s Logix control platforms, allowing engineers to manage diverse field devices within a unified control framework without compromising data integrity or communication reliability.
Key strengths of the 1788-EN2PAR include robust protocol support, network redundancy, and high throughput communications. It supports power supply inputs ranging from 24–32 V DC and consumes only 260 mA of power under no field device load conditions. The device features continuous basic insulation voltage of 30 V between network and power channels, meeting industrial safety standards. Its compact, open-style enclosure is designed for DIN rail mounting with dimensions approximately 120 mm by 200 mm by 87 mm.
Purpose-built for harsh industrial environments, the 1788-EN2PAR has an operating temperature range of 0–60 °C and withstands vibration, shock, and humidity levels expected on plant floors. Its compliance with certifications including IECEx, ATEX, and UL ensures suitability for hazardous locations, protecting both personnel and equipment while maintaining smooth communications. The device supports wiring with copper wire ranges of 22–14 AWG suitable for secure and robust network installations.
| Parameter | Value |
|---|---|
| Model | 1788-EN2PAR |
| Brand | Allen-Bradley |
| Type | EtherNet/IP to PROFIBUS PA Linking Device |
| Network Connections | 1 EtherNet/IP port, 1 PROFIBUS PA trunk |
| Power Supply | 24–32 V DC, 0.75 A, Class 2/SELV |
| Power Consumption | 260 mA @ 24 V (no field devices connected) |
| Enclosure | Open-style, DIN rail mountable |
| Dimensions (H x W x D) | 120 mm x 200 mm x 87 mm (4.69″ x 7.88″ x 3.44″) |
| Operating Temperature Range | 0 to 60 °C (32 to 140 °F) |
| Humidity | 5 to 95% non-condensing |
| Vibration | 2 g @ 10–500 Hz |
| Shock | 15 g operating, 30 g non-operating |
| Isolation Voltage | 30 V basic insulation |
| Certifications | IECEx, ATEX, UL, cUL, CE |
Related Modules or Compatible Units
1788-AENTR – EtherNet/IP adapter module compatible with FLEX I/O networks.
1794-AENTR – FLEX I/O EtherNet/IP adapter for integrating FLEX I/O series.
1788-CN2PAR – ControlNet to PROFIBUS PA linking device for alternative network bridge.
1756-EN2T – EtherNet/IP communication module for ControlLogix platforms supporting expanded networking.
1788-FBJB4R – PROFIBUS PA junction box for field wiring and network extension.
Installation Notes & Maintenance Best Practices
Installation of the 1788-EN2PAR requires compatibility checks with existing plant networks and proper wiring according to Rockwell Automation’s Industrial Automation Wiring and Grounding Guidelines. Use copper wires rated for 75–105 °C with correct gauge to ensure reliable connections and avoid signal degradation. Mount the device securely on standard DIN rails within temperature-controlled enclosures to maintain operational integrity.
Regular maintenance includes inspection of communication LEDs and diagnostic indicators using network management software to detect faults or communication irregularities early. Keep firmware updated with latest releases for optimum performance and cybersecurity. Periodic cleaning of connector terminals and verifying physical cable terminations improves reliability. Planning for redundant network configurations enhances uptime and robustness against communication failures.
