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 |
|---|---|
Applications & Typical Use CasesRestoring 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 ConsiderationsSimple 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.
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 ConsiderationsSimple 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.
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.
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7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
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