NG # 00917-HW-HNWEL-037
The Honeywell CPO Expansion I/O Board (CP-EXPIO) is an expansion module designed for Honeywell ComfortPoint Open (CPO) plant controllers. It increases the available physical input/output points, allowing building automation and HVAC control systems to connect more sensors, meters, actuators, and other field devices without replacing the main controller. The board features an onboard processor for fast I/O scanning and communicates with CPO controllers through an RS485 CP-IO bus. It provides a combination of analog and digital inputs and outputs, making it suitable for flexible building-management applications.
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Get A QuoteExpand point capacity of the supported plant controllers to a maximum of 256 physical I/Os for firmware 2.1 and later versions. For firmware 2.1 and earlier versions a maximum of 128 physical I/Os. A maximum of 15 CP-EXPIO modules can be added for
| Specification | Details |
|---|---|
| Product Model | CP-EXPIO |
| System | Honeywell ComfortPoint Open |
| I/O Capacity | 24 points |
| Analog Inputs | 8 universal inputs |
| Analog Input Signals | 0/2–10 VDC, PT1000, NTC 20K |
| AI Temperature Range | -50°C to +150°C |
| Digital Inputs | 6 potential-free contact inputs |
| Pulse Input | Up to 15 Hz for energy-meter totalization |
| Analog Outputs | 6 × 0–10 VDC |
| AO Resolution | 8-bit |
| Digital Outputs | 4 × Triac outputs |
| DO Voltage | Maximum 24 VAC |
| DO Current | 30–500 mA |
| Communication | RS485 CP-IO bus |
| Power Supply | 24 VAC ±20%, 50/60 Hz |
| Maximum Power Consumption | 15 VA |
| Mounting | DIN rail or wall mounting |
| Protection Class | IP20 |
| Housing | ABS plastic |
| Operating Temperature | 0°C to 50°C |
| Storage Temperature | -20°C to +70°C |
| Humidity | 5–93% RH, non-condensing |
| A/D Resolution | 12-bit |
| Addressing | Onboard HEX switch |
| Maximum Expansion | Up to 15 modules with CP-IPC; up to 16 with CPO-PC-6A |
| Certifications | CE, UL 916, FCC Part 15 Class B, UUKL Smoke Control Application |
| MTBF | 100,000 hours / approximately 11.4 years |
CPO Expansion I/O Board Data Sheet
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