Introduction / Quick Summary
The Allen Bradley 2711P-RN3 is a DH-485 communication module designed to add legacy serial network connectivity to PanelView Plus operator terminals. It provides a compact, field-serviceable interface that allows PanelView units to talk to SLC and MicroLogix controllers over the DH-485 serial network, enabling HMI screens, alarms and operator interactions on older automation architectures.
Technical Specifications (Key Parameters — includes size & weight)
| Parameter | Specification |
|---|---|
| Product Type | Communication Module (DH-485 Interface) |
| Model Number | 2711P-RN3 |
| Primary Function | DH-485 serial network interface for PanelView Plus 400/600 |
| Compatible HMI Models | PanelView Plus 400 / PanelView Plus 600 |
| Protocol | DH-485 (serial multidrop) |
| Physical Connection | 9-pin D-sub (or manufacturer terminal block per terminal variant) |
| Baud Rates Supported | Typical DH-485 speeds (configurable) |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% – 95% non-condensing |
| Enclosure Rating | Mounted in HMI — conforms to PanelView enclosure rating (IP20/NEMA Type 1 inside cabinet) |
| Mounting | Plug-in communication slot on PanelView backplane |
| Dimensions (H × W × D) | 60 × 90 × 25 mm (2.36 × 3.54 × 0.98 in) (module only, approximate) |
| Weight | 0.07 kg (0.15 lb) (module only, approximate) |
| Status | Legacy / discontinued in many ranges — plan migration for new projects |
Applications & Typical Use Cases
-
Restoring or maintaining HMI connectivity on legacy DH-485 networks.
-
Retrofitting PanelView Plus terminals into older SLC/MicroLogix based systems.
-
Small-scale plants where Ethernet migration is deferred and serial networks persist.
-
Diagnostic and commissioning tasks that require direct HMI-to-controller serial communication.
Advantages & Field Considerations
-
Simple plug-in installation into PanelView backplane with captive screws.
-
Keeps existing DH-485 infrastructure operational without replacing panels.
-
Minimal footprint and negligible weight — no additional cabinet space required.
-
Familiar configuration flow on PanelView for node address and baud rate.
-
Useful during staged migrations where a gradual transition to Ethernet is planned.
-
Low electrical impact; module draws minimal power from host terminal.
-
Enables legacy alarm, recipe, and operator interaction functionality to remain intact.
-
Because many units are legacy/discontinued, spare planning is recommended.
-
Works best when cable lengths and network topology conform to DH-485 recommendations.
-
Straightforward diagnostic LED indications on the host terminal simplify commissioning.
Company Information
E-mail: [email protected]
Mobile：Please contact by email
Whatsapp：Please contact by email
Add: Alishan Building, 2 Lvling Rd, Siming District, Xiamen, Fujian, China, 361006
Our services
We are specialized in providing industrial automation parts with a one-year warranty. Our industrial automation parts are sold all over the world.
We can provide equipment and spare parts from different countries and manufacturers, solve your worries or quality problems in many places, and have a great price advantage.
Welcome to call for more product details.
