CP-IO22 (I/O Board Accessory for the CPi-S series)

The CP-IO22 is an I/O expansion board designed specifically for the ComfilePi series. It provides a total of 22 I/O channels (11 digital inputs and 11 digital outputs) using screw terminals, making field wiring simple and secure. Built-in indicator LEDs allow quick visual confirmation of I/O status during operation and troubleshooting.

Note: This product cannot be mounted on the Cpi-C070WR-4C.

Inputs

• Voltage range: 12 ~ 24 VDC
• Absolute min/max voltage range: 3.3 ~ 28 VDC
• Response time: 5 ms
• Input OFF level: < 1.8 VDC
• Input ON level: > 2.5 VDC
• Indicator LED OFF level: < 4.5 V
• Indicator LED ON level: > 5.0 V

Outputs

• DC output sink (NPN) × 11
• Maximum output voltage: 30 VDC
• Response time: 10 ms
• Maximum output current: 150 mA per channel

Package Includes

• CP-IO22 I/O board
• 40-pin ribbon cable × 1
• Mounting screws × 4

FAQ

Q: How is this different from using the GPIO pins on a standard Raspberry Pi?

A: Standard Raspberry Pi GPIO pins operate at 3.3V logic levels. That’s fine for basic digital I/O, but it stops at the logic-signal stage. In industrial environments, I/O typically works very differently. Most systems use 24V signals or dry-contact interfaces such as relays. This is necessary to interface with real-world devices—sensors, actuators, solenoid valves, motors, and other industrial equipment.

This product bridges that gap. It allows those real-world industrial devices to be safely and reliably connected to ComfilePi, translating industrial-level signals into a form the system can use. In short, it’s the difference between hobby-level GPIO and true industrial I/O designed for the real world.