Y301-220/222 2DI + 2DO I/O Module
Y301-220 and Y301-222 are compact Modbus RTU I/O modules with two digital inputs and two high-power relay outputs.
- Channels
- 2DI + 2DO; Y301-222 adds 2AI
- Interfaces
- RS485 2-wire; optional RS232/TTL; DI/DO/AI terminals
- Protocols
- Modbus RTU slave
- Power supply
- 5–36 VDC
Price for the selected configuration.
Shipping & Tax: Shipping is quoted separately and paid before dispatch. Import duties, taxes, customs fees and destination charges are paid by the customer.
Overview
Y301-220 and Y301-222 are compact Modbus RTU I/O modules with two digital inputs and two high-power relay outputs. Y301-222 adds two analog inputs for 0-10 V or 4-20 mA signals, so one module can collect status, switch loads, and read process values.
Typical applications
- Small pump, fan, lighting, and HVAC control panels.
- Equipment monitoring that needs both relay output and signal feedback.
- Projects that need two analog channels without adding a separate AI module.
How it works & selection
Model Options
| Y301-220 | 2DI + 2DO, for equipment monitoring and relay control. |
| Y301-222 | 2DI + 2DO + 2AI, for control plus analog sensing. |
Selection notes
Choose Y301-222 only when analog input is required. For digital-only control, Y301-220 keeps the wiring simpler.
Technical specifications
| Channels | 2DI + 2DO; Y301-222 adds 2AI |
|---|---|
| Interfaces | RS485 2-wire; optional RS232/TTL; DI/DO/AI terminals |
| Protocols | Modbus RTU slave |
| Power supply | 5–36 VDC |
Signals and communication
| Product type / topology | Modbus RTU digital I/O module |
|---|---|
| Channels | 2DI + 2DO; Y301-222 adds 2AI |
| Interfaces | RS485 2-wire; optional RS232/TTL; DI/DO/AI terminals |
| Protocols | Modbus RTU slave |
| Functions | Pulse counter, output retention options, and up to 4 local automation rules. |
Electrical
| Input signals | 2DI dry/wet contact; Y301-222: 0–10 V or 4–20 mA AI |
|---|---|
| Power supply | 5–36 VDC |
| Power consumption | 150 mA @ 12 V typical; 200 mA max |
| Relay outputs | 2 × SPDT relay; 277 VAC 10 A / 28 VDC 10 A |
| Measurement | Y301-222 AI: 16-bit resolution; ±1% FS accuracy; 10 Hz sampling |
Mechanical and environment
| Dimensions | 82 × 54 × 32 mm |
|---|---|
| Mounting | 35 mm DIN clip or screw slots |
| Environment | −40 to +85 °C; 5–95% RH, non-condensing; altitude ≤2000 m |
| Protection | IP20; UL94 V-0 flame-retardant housing |
Package & resources
Package contents
1 x Y301 module, digital quick reference guide, and warranty card.
Optional accessories include a USB-to-RS485 converter, DIN clip, power supply, and shielded cable set.
