Brand:Allen Bradley PLC Item No.:2711-NC21 Product Origin:USA Product Dimensions:Cable Length: 5 meters Product Weight:Shipping weight: 3 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen Bradley 2711-NC21 RS-232 Operating Cable is a dedicated industrial communication cable designed for legacy PanelView Standard systems. It plays a critical role in enabling stable serial communication between PanelView terminals and MicroLogix controllers, supporting both runtime operation and configuration tasks.
Technical Specifications
Parameter
Specification
Series
PanelView Standard Cable
Model
2711-NC21
Cable Type
RS-232 Operating Cable
Function
PanelView to MicroLogix communication
Length
5 m
Connector A
9-pin D-shell
Connector B
8-pin mini DIN
Communication Protocol
DF1 / DH-485 (system dependent)
Application
Upload/download, HMI-PLC communication
Installation Type
Plug-and-play cable assembly
Weight (shipping)
3 kg
Recommended Related Models
Model
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2711-NC22
PanelView RS-232 Operating Cable 15 m Extended Version
1747-CP3
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2711-NC13
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1747-UIC
DH-485 USB Interface Converter
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Applications
• PanelView to MicroLogix PLC communication and programming
Used for reliable serial communication between Allen-Bradley PanelView terminals and MicroLogix controllers in legacy automation systems.
• Industrial HMI upload/download and configuration tasks
Enables data transfer, application loading, and system maintenance through RS-232 based communication.
• OEM machine servicing and retrofit projects
Commonly used in maintenance environments where existing PanelView Standard systems require reprogramming or replacement support.
• Legacy DH-485 / DF1 serial network integration setups
Supports stable point-to-point communication in older Allen-Bradley control architectures.
Key Advantages
• Stable RS-232 communication for industrial environments
Ensures reliable data transfer between HMI and PLC even in electrically noisy factory conditions.
• Pre-assembled 5-meter cable for direct installation
Eliminates the need for custom wiring or pinout configuration during setup.
• Compatible with PanelView Standard and MicroLogix systems
Designed specifically for Allen-Bradley legacy automation ecosystems.
• Rugged industrial-grade construction
Built for long-term use in continuous operation and maintenance environments.
Technical FAQs
1. What devices is this cable used with?
It is used between PanelView Standard terminals and MicroLogix PLCs.
2. What communication protocol does it support?
It supports RS-232 serial communication, typically used for DF1 or DH-485 setups.
3. What is the cable length?
The cable is 5 meters (16.4 ft) long.
4. Is this a straight-through or crossover cable?
It is a purpose-built Allen-Bradley wiring configuration designed for PanelView communication ports.
5. Can it be used for programming?
Yes, it is commonly used for upload/download and configuration tasks.
6. Is it compatible with modern Ethernet-based HMIs?
No, it is designed only for legacy serial systems.
7. Does it require drivers or configuration?
No drivers are needed; configuration depends on PLC/HMI communication settings.
8. Can it be replaced with a generic RS-232 cable?
Not reliably, because pinout and wiring are application-specific.
9. What environments is it suitable for?
Industrial automation environments with PanelView Standard installations.
10. Is this product still actively sold?
It has been officially discontinued, but remains widely used for maintenance and replacement.
