Description
B&R 5P81 Series | High-Performance APC810 Controller Chassis
Product Introduction
The 5P81 prefix designates the main system assembly hardware for B&R’s Automation PC 810 (APC810) series. Designed to act as the central computing powerhouse for demanding automated production lines, CNC machinery, and high-speed packaging skids, the 5P81 architecture bridges real-time PLC logic with enterprise-level SCADA visualization.
Featuring a rugged galvanized steel chassis with passive heatsink cooling, the 5P81 system unit houses modular CPU boards, power logic, and flexible expansion slots. It connects directly to local HMIs or drives remote display units up to 100 meters away via Smart Display Link (SDL). Installing a pre-tested, genuine 5P81 chassis eliminates unexpected machine downtime caused by motherboard degradation or power controller faults on aging lines.
5P81
Key Technical Specifications
| Parameter | Technical Specification |
| Manufacturer | B&R Industrial Automation |
| Series Prefix | 5P81 / Automation PC 810 (APC810) |
| Supply Voltage | 24 VDC ±25% (SELV Isolated Input) |
| Processors Supported | Intel Core 2 Duo / Core Duo / Celeron M |
| Memory Slots | 2x DDR2 SO-DIMM sockets |
| Onboard Storage / NVRAM | 512 kB battery-backed SRAM (192 kB remanent) |
| Network Interfaces | 2x 10/100/1000 Mbit/s RJ45 Gigabit Ethernet ports |
| Serial Ports | 2x RS232 (9-pin DSUB male) |
| USB Connectivity | Up to 5x USB 2.0 ports |
| Video Outputs | DVI-I (Supports DVI, VGA via adapter, and SDL transmitter) |
| Drive Expansion | 1x Slide-in Compact Drive bay, 1x CompactFlash slot |
| Bus Expansion Slots | Varies by backplane configuration (PCI and PCIe options) |
| Operating Temperature | 0°C to +55°C (32°F to 131°F, component dependent) |
Application Scenarios & Pain Points
Field Experience: A high-speed printing facility experienced intermittent total line stops whenever their main process IPC overheated or lost fieldbus communication. The issue was traced to a degraded legacy motherboard with faulty onboard LAN controllers. Swapping in a bench-certified 5P81 (APC810) unit with clean PCI bus lanes immediately restored dual-channel Ethernet reliability and eliminated CPU thermal throttling.
- With Genuine 5P81 IPC: Stable execution of B&R Automation Runtime, zero packet loss over dual Gigabit Ethernet ports, and long-term resistance to electrical EMI.
- Without (Third-Party / Uncertified Unit): Bus timing mismatch errors, failure to hand off display video via SDL, and data loss during sudden 24V supply drops.
- Central Control Cabinets: Functions as the primary master controller for multi-axis servo drives and centralized PLC I/O lines.
- Remote Visualization Stations: Transmits high-resolution HMI screens across long cable runs using modular SDL transmitter cards.
QA & Live Testing SOP (Trust Signal)
Every 5P81 IPC unit pulled from inventory undergoes rigorous multi-stage bench clearance before dispatch:
- Visual & Chassis Inspection: We check the galvanized casing, orange front cover door, status LEDs, and backplane slot connectors for physical damage or corrosion.
- Power & Memory Health Check: The 24VDC input circuit is tested under load, and the onboard SRAM battery and DDR2 RAM sockets are verified for clean boot detection.
- I/O & Link Stress Sweep: Both Gigabit Ethernet ports, all USB 2.0 ports, RS232 interfaces, and the DVI/SDL display outputs are driven simultaneously to confirm 100% data throughput.
- Thermal & Runtime Stress Test: The unit is run through automated CPU and memory diagnostic cycles inside a thermal chamber to ensure stable cooling across the heatsink.
- Anti-Static ESD Packaging: Verified units are cleaned, wrapped in static-shielding bags, and packed inside custom foam-lined shipping crates.
Field Engineer’s Pitfall Guide
- ❗ Check Complete Part Number Suffix: The code “5P81” is the series prefix (e.g., 5P81:474304.003-00). Always match the specific CPU board (5PC810.SX…) and backplane slot configuration installed inside your existing chassis to ensure full pin-for-pin compatibility.
- ❗ Preserve CMOS / SRAM Battery During Maintenance: The 5P81 contains a 3V lithium battery behind the front orange door to back up SRAM data and system time. Replace this battery while the unit is powered on (or back up your retain variables) to prevent loss of system parameters.
- ❗ Secure Slide-in Drives Correctly: When transferring hard drives or CompactFlash cards from your original IPC into the replacement 5P81 chassis, ensure the slide-in tray locks fully into the internal IDE/SATA backplane. A loose tray connector will result in boot disk errors at power-up.
Intent-Driven FAQ
Q: What does the “5P81” designation mean on a B&R component label?
A: “5P81” is the manufacturing model prefix used by B&R for the Automation PC 810 (APC810) industrial computer series.
Q: Can I run both Windows OS and B&R Automation Runtime on a 5P81 computer?
A: Yes. Depending on the CPU board and drive configuration, 5P81 units support dual-boot or hypervisor setups running Windows (XP/7/Embedded) alongside real-time Automation Runtime.
Q: How do I connect an Automation Panel display to a 5P81 chassis?
A: The unit features a female DVI-I port that can drive direct DVI/VGA monitors or accept an Automation Panel Link (SDL) transmitter module to stream video and touch data over a single SDL cable.
Q: What power input is required for the 5P81 IPC?
A: The system requires a nominal 24 VDC (±25%) power supply connected via a standard B&R screw or cage-clamp terminal block.
Q: What condition are these units supplied in, and what warranty applies?
A: We provide fully bench-tested New Surplus and reconditioned original B&R units. Every 5P81 IPC comes backed by a 1-year functional replacement warranty and full QA test clearance.
