Description
Product Introduction
The B&R 4PP420.0571-45 belongs to the versatile Power Panel 420 series, combining visualization and runtime control into a single compact front-panel mounted enclosure. Engineered specifically for OEM machinery and localized process cells, this terminal runs B&R’s Automation Studio runtime environment to execute low-latency logic alongside responsive user interfaces.
Unlike standalone HMI monitors that rely on external PLCs over slow serial links, the 4PP420.0571-45 features direct bus expansion slots and onboard Ethernet networking. This eliminates communication lag between user input and machine action while reducing overall cabinet space demands in space-constrained control enclosures.
Key Technical Specifications
| Parameter | Value |
| Part Number | 4PP420.0571-45 |
| Manufacturer | B&R Industrial Automation |
| Product Series | Power Panel 420 (PP420) |
| Display Size & Type | 5.7″ Color TFT LCD |
| Resolution | 320 x 240 pixels (QVGA) |
| Touch Technology | Analog Resistive Touch Screen |
| Interfaces | Ethernet 10/100, 2x USB 2.0, RS232 Serial |
| Expansion Slots | 1x aIF (Automation Interface Slot for Fieldbus) |
| Input Voltage | 24V DC (-15% / +20%) |
| Front Bezel Rating | IP65 (dust-tight and water jet resistant) |
| Operating Temp | 0°C to +50°C |
Application Scenarios & The “Trench” Experience
Picture this: It’s midnight on a critical production run, and a high-speed pouch filling machine freezes because the HMI backlight burned out and the resistive touch screen lost calibration from years of operator abuse. The entire line is starved, costing $2,500 every hour in lost throughput. You need a pre-tested 4PP420.0571-45 drop-in terminal so you can reload the project file via CompactFlash and resume cycle times immediately.
- Packaging Machinery – Form-fill-seal operations – Real-time parameter tweaking and recipe switching directly at the station.
- Plastics & Injection Molding – Auxiliary heater zone monitoring – Fast screen refreshes with low-latency alarm handling.
- Textile & Material Processing – Tension and speed synchronization – Compact footprint mounting right on moving machine frames.
- Food & Beverage Processing – Washdown-adjacent conveyor systems – IP65 sealed front bezel withstands frequent liquid splash exposure.
Field Case Study
A pharmaceutical packaging plant in Indiana suffered a complete display failure on a B&R PP420 panel controlling an automated cartoning cell. The OEM quoted a 14-week lead time for a modern retrofitted panel assembly. We supplied a fully tested 4PP420.0571-45 unit overnight. The site automation team swapped the memory card from the failed unit into the replacement chassis, mounted it back into the cut-out, and had the cell producing validated batches before the first shift started.
Transparency SOP: Quality Assurance & Testing
We don’t just ship boxes; we test them on actual B&R test benches:
- Inbound Visual Inspection: Check aluminum bezel corners, gasket rubber integrity, display glass clarity, and rear connector pins.
- Touch Matrix Calibration: Perform a 9-point touch screen accuracy test across the entire 5.7″ surface to eliminate dead zones or drift.
- Display Integrity Test: Inspect CCFL/LED backlight brightness levels and test LCD pixels for burn-in, banding, or hot pixels.
- Live Rig Power-On: Boot the unit into B&R Automation Studio runtime environment using our dedicated 24V DC rack.
- Port Diagnostics: Test Ethernet handshake, USB file transfers, and serial communications under continuous data load.
- ESD & Cleanroom Packaging: Clean the front glass, wrap in anti-static film, and package inside thick foam-lined shipping boxes.
4PP420.0571-45
4PP420.0571-45
The Veteran’s Tech Trap Guide
- ⚠️ Mind the CompactFlash Card: Before applying power to a replacement unit, ensure you transfer the original CompactFlash card (containing the runtime project and operating system) correctly into the slot. Never remove or insert the CF card while 24V DC power is connected.
- ❗ Inspect the Front Panel Gasket: When mounting the unit into the cabinet door cut-out, verify the rubber sealing gasket is sitting flat in its groove. A pinched or missing gasket allows moisture or oil mist inside the cabinet, leading to short circuits on the main board.
- ⚠️ Do Not Overtighten Mounting Clamps: Tighten the rear screw clamps evenly in a cross pattern. Excessive torque on one corner can warp the front bezel, causing premature touch screen glass cracking or false touch triggers.
- ❗ Backup Your IP Settings: If using a replacement unit without transferring the existing CF card, make sure to manually configure the network IP parameters via the system diagnostic menu to match your PLC subnet—otherwise, communication will fail upon boot.
Frequently Asked Questions
Q: Is the B&R 4PP420.0571-45 panel hot-swappable?
A: No. Disconnecting or plugging in the 24V DC power connector while energized can cause voltage spikes that damage internal power supply components. Always turn off power before swapping terminal units.
Q: Can I use a standard USB flash drive to transfer software to this panel?
A: Yes, provided the runtime software application supports USB updates. However, the core operating system and initial project files are usually loaded directly onto the internal CompactFlash memory card.
Q: What should I do if the touch screen response is misaligned?
A: You can access the B&R built-in system diagnostics menu during bootup to run the touch calibration routine, recalibrating the resistive touch matrix points.
Q: Why buy New Surplus or Refurbished instead of direct from B&R?
A: The PP420 series is classified as legacy by B&R, meaning direct OEM lead times can be months long or require expensive engineering redesigns to upgrade to Power Panel C-Series hardware. Surplus or refurbished units offer immediate drop-in restoration.
Q: What warranty comes with this component?
A: Every 4PP420.0571-45 unit—whether New Surplus or bench-tested Refurbished—comes with a full 12-month operational warranty covering display, touch function, and internal logic hardware.
Start Chat
