XCL8010A Honeywell – Excel 800 Central Processing Unit 32-Bit Controller

The XCL8010A is the central processing unit (CPU) for Honeywell's Excel 800 building-management system. It integrates HVAC control, energy optimization and safety alarms in a single, programmable platform:

• 32-bit RISC processor - handles up to 1,000 I/O points
• Built-in 10 Base-T Ethernet - web-based commissioning & trending
• C-Bus and LonWorks (optional) - seamless integration to chillers, VFDs, lighting
• Flash firmware - field upgrades via SD card or network
• Battery-backed real-time clock - 72 h hold-up for power outages

Ideal for office towers, hospitals, universities and data-centers that need open-protocol, enterprise-ready building automation.

• Native Ethernet - web browse trends, alarms, set-points
• Open protocols - LonWorks, BACnet, Modbus; no vendor lock-in
• Large memory - store 6 months of logs without external server
• Flash firmware - upgrade on-site, no chip swap
• C-Bus auto-tune - locate and address expansion modules in seconds
• Battery-backed clock - schedules survive 72 h power loss
• DIN-rail clip - fits existing panels, no special rack

• Office towers - VAV & fan-coil control
• Hospitals - pressure & temperature critical zones
• Universities - central plant chilled-water optimization
• Data-centers - CRAC units & free-cooling sequences
• Hotels - room card-key energy management

• I/O modules: XL50, XL500, XFL523, XSL521
• Sensors: 0-10 V, 4-20 mA, NTC10K, Pt1000
• Software: Honeywell CARE 4.0 or EBIs for programming
• Server: EBIs / Enterprise Buildings Integrator for SCADA

• XCL8010A CPU
• 3 V lithium battery (installed)
• RJ-45 dust cap
• SD card blank (firmware slot)
• NIST calibration certificate for on-board A/D
• Quick-start & safety sheet