Description
🛠️ Product Overview & Technical Datasheet
The Allen-Bradley PanelView 300 (Part Number: 2711-K3A5L1) is a compact, legacy operator interface terminal designed for basic industrial monitoring and control tasks. Featuring a 3-inch monochrome display and a durable tactile keypad interface, it provides reliable visualization, data entry, and alarm handling for small-scale automation systems and machine control panels.
- Brand: Allen-Bradley (Rockwell Automation)
- Model: 2711-K3A5L1
- Series: PanelView 300 Standard Operator Terminal
- Product Name: Keypad Operator Terminal / HMI Display
- Place of Origin: United States / Global Manufacturing Facilities
- Physical Condition: Brand New / Factory Sealed or Verified Surplus
- Display Size: 3.0 inches (Diagonal)
- Display Type: Monochrome Transflective LCD with LED Backlight
- Resolution: 128 × 64 Pixels
- Operator Input: Keypad assembly (8 function keys [F1–F8], cursor keys, and numeric entry keys)
- Memory: 240 KB non-volatile application memory; 170 KB runtime memory
- Dimensions: 197 mm × 140 mm × 82 mm (approx. 7.76 in × 5.53 in × 3.21 in)
- Weight: 0.67 kg (1.48 lbs)
- Power Rating / Supply: 24 VDC Nominal (18 to 32 VDC range), max 10 W
📋 First Run Inspection Checklist
- 🔍 Verify physical condition, including the LCD screen overlay, keypad buttons, and rear connector pins, to ensure zero transit damage.
- 🔌 Check all external terminal block wiring, specifically the 18–32 VDC power supply lines, before energizing the unit.
- ⚡ Confirm correct DC power supply voltage and proper polarity prior to powering on the terminal.
- 🛡️ Confirm proper grounding of the HMI chassis to minimize electromagnetic interference (EMI) in industrial setups.
- 🌐 Check RS-232 / DH-485 communication cable wiring and port connections to ensure reliable data exchange with the controller.
🔧 Routine Maintenance & Servicing
- 🧰 Periodically inspect power terminals and communication cables for physical tightness, wear, or oxidation.
- 🧽 Clean the display screen and keypad bezel using a soft, lint-free cloth dampened with a mild cleaner; avoid harsh chemical solvents.
- 💾 Back up application projects and configuration files regularly using PanelBuilder32 software.
- 🌡️ Monitor control cabinet internal ambient temperature to ensure operating limits (0 °C to 55 °C) are maintained.
🔍 Troubleshooting & Common Issues
- ⚠️ Unit Fails to Power On: Verify input 24 VDC supply voltage levels, external fuse integrity, and rear terminal block wiring.
- ⚠️ Communication Loss with PLC: Check DH-485 network cable continuity, node address settings, and baud rate configurations via PanelBuilder32.
- ⚠️ Unresponsive Keypad Input: Inspect the sealed membrane keypad for physical wear or debris accumulation around the keys.
⚠️ Safety Precautions
- 🛑 Installation, wiring, and maintenance must be performed strictly by qualified and authorized electrical or automation personnel.
- 🔌 Always disconnect external power sources before handling internal wiring, communication links, or removing the unit from its panel cutout.
- ⚡ Observe standard electrostatic discharge (ESD) precautions when handling internal electronic components.
❓ Frequently Asked Questions (Q&A)
- 💡 Q: What software is used to program the PanelView 300 (2711-K3A5L1)?
A: Application projects are developed and configured using Rockwell Automation’s PanelBuilder32 software package.
- 💡 Q: What communication protocols does this terminal support?
A: It features an integrated RS-232 communication port configured for the DH-485 protocol, allowing direct connection to legacy Allen-Bradley controllers like SLC 500, MicroLogix, and PLC-5 systems.
- 💡 Q: Does the unit support peripheral devices like printers?
A: Yes, it includes a dedicated RS-232 printer port for local printing of alarm messages and data logs.
