Description
B&R X20CP1585 X20 High‑Performance PLC CPU Module
Technical Specifications
- Product Model: X20CP1585
- Brand: B&R (Automation)
- Warranty: One Year
- Input Voltage: 24 V DC, ‑15% / +20% tolerance, max 1.5 A input current
- Operating Temperature: ‑25 °C ~ +60 °C (DIN‑rail cabinet mounting)
- Storage Temperature: ‑40 °C ~ +85 °C
- Response Time: Shortest task cycle 200 µs; typical instruction cycle 0.0044 µs
- Protection Class: IP20 (DIN‑rail modular controller)
- Accuracy Class: Industrial real‑time PLC motion‑control grade
- Output Frequency: Not applicable
- Rated Current: Max 1.5 A @24 V DC; total power consumption 8.2 W (without interface modules and USB loads)
- Processor: Intel Atom E640T 1.0 GHz, integrated dedicated I/O‑processor, FPU floating‑point unit
- Memory: 256 MB DDR2‑SDRAM; 1 MB SRAM remanent memory; CompactFlash slot for application program storage
- Real‑Time Clock: Battery‑backed RTC, lithium battery ≥2‑year service life at 23 °C
- On‑board Interfaces: 1×Gigabit Ethernet 10/100/1000 Base‑T; 1×POWERLINK V1/V2 (PRC poll‑response chaining); 1×RS232; 2×USB 2.0 host; X2X‑Link backplane bus; 1 expansion slot for additional communication interface modules
- Mounting: Standard DIN‑rail mounting
- Diagnostics: Multi‑color LED indicators for run, error, overload and serial communication status; comprehensive hardware self‑test
- Certifications: CE, UL/cUL, RoHS compliance
- Humidity: 5‑95 % RH, non‑condensing
- Weight: 0.40 kg
- Dimensions: 150 × 99 × 85 mm (W × H × D)B& R Indus…

Product Overview
The X20CP1585 is a high‑performance fan‑less CPU controller for B&R X20 modular PLC system. Built on 1.0 GHz Atom processor plus independent I/O co‑processor, it delivers high‑speed real‑time control for complex automation and motion‑control applications.
Dual‑processor architecture separates application logic processing and background I/O data handling, improving system real‑time stability. CompactFlash removable memory enables convenient program backup, restore and firmware upgrade. Gigabit Ethernet and POWERLINK interfaces support high‑speed fieldbus motion‑control communication; extra expansion slot allows adding further communication adapters to expand system connectivity. It executes B&R Automation Studio project software, supporting logic control, motion control, CNC functions and advanced data processing. DIN‑rail modular design seamlessly connects with X20 series digital‑input, digital‑output and analog I/O modules via X2X‑Link backplane bus. OEM production is mature status; widely available as refurbished and new‑old‑stock spare parts for machine‑builder retrofits and plant‑maintenance projects.
Application Notes
‑ CompactFlash memory card is sold separately for application program storage. ‑ Not hot‑swappable; cut off 24 V DC supply before module removal or replacement. ‑ Install on standard DIN‑rail inside well‑ventilated industrial cabinet; avoid dust accumulation and condensation. ‑ Observe ESD anti‑static precautions during handling. ‑ Configure and download project via Automation Studio software; verify firmware compatibility during spare‑part replacement. ‑ Lithium backup battery for RTC can be replaced on‑site, follow official manual procedure. ‑ Typical deployment: packaging machinery, plastic‑processing machines, printing‑equipment, material‑handling automation, machine‑tool auxiliary‑control systems for spare‑part stocking and legacy‑system retrofits.








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