Y301-880 8DI + 8DO Digital I/O Module
Y301-880 is the high-density digital I/O model in the Y301 family.
- Channels
- 8DI + 8DO
- Interfaces
- RS485 2-wire; optional RS232/TTL; DI/DO terminals
- Protocols
- Modbus RTU slave
- Power supply
- 5–36 VDC
Price for the selected configuration.
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Overview
Y301-880 is the high-density digital I/O model in the Y301 family. It combines eight opto-isolated digital inputs and eight SPDT relay outputs in one Modbus RTU module, reducing device count in larger cabinets.
Typical applications
- Multi-zone building automation and equipment control.
- Large telemetry panels that need 16 digital points in one module.
- PLC or gateway expansion where RS485 Modbus RTU is already used.
Key Features
- 8 dry/wet contact DI channels plus 8 SPDT relay outputs.
- Independent indicators for all 16 channels plus system status.
- Up to 16 local rules for follow, pulse, timer, logic, and schedule modes.
- Software Modbus address 1-255 plus 5-bit DIP offset for panel deployments.
- 5 to 36 VDC input, -40 to 85 C operation, hardware watchdog, Reload button.
How it works & selection
Selection notes
Use Y301-880 when the project needs many digital points but no analog input. For analog sensing, compare it with Y301-444 or the dedicated Y301 analog input modules.
Technical specifications
| Channels | 8DI + 8DO |
|---|---|
| Interfaces | RS485 2-wire; optional RS232/TTL; DI/DO terminals |
| Protocols | Modbus RTU slave |
| Power supply | 5–36 VDC |
Signals and communication
| Product type / topology | Modbus RTU digital I/O module |
|---|---|
| Channels | 8DI + 8DO |
| Interfaces | RS485 2-wire; optional RS232/TTL; DI/DO terminals |
| Protocols | Modbus RTU slave |
| Functions | 16 local rules; pulse, delay, timer, button, logic, and watchdog modes. |
Electrical
| Input signals | 8 × dry/wet contact, opto-isolated; 5–36 V wet-contact mode |
|---|---|
| Power supply | 5–36 VDC |
| Power consumption | 260 mA @ 12 V typical; 350 mA max |
| Relay outputs | 8 × SPDT relay; 277 VAC 10 A / 28 VDC 10 A |
Mechanical and environment
| Dimensions | 145 × 90 × 40 mm |
|---|---|
| Mounting | 35 mm DIN clip or screw slots |
| Environment | −40 to +85 °C; 5–95% RH, non-condensing |
| Protection | IP20; UL94 V-0 flame-retardant housing |
Package & resources
Package contents
Module, digital quick reference guide, and warranty card. Optional accessories include a DIN clip, USB-to-RS485 converter, 24 VDC power supply, and shielded RS485 wiring kit.
