The Y301-110/200/020 series covers the small digital I/O combinations used most often in control cabinets: 1DI+1DO, 2DI, or 2DO. It is a compact Modbus RTU module for simple status collection, relay control, alarm input, pump/valve switching, and OEM equipment expansion.
Best Fit
- Small control boxes that need one or two digital points.
- PLC, gateway, SCADA, or data logger I/O expansion over Modbus RTU.
- OEM equipment where cabinet space and wiring cost matter.
Model Options
| Y301-110 | 1DI + 1DO for local alarm input and actuator control. |
| Y301-200 | 2DI for switch, contact, and equipment status monitoring. |
| Y301-020 | 2DO relay output for pump, valve, light, or reset-loop control. |
Key Specifications
- Modbus RTU over RS485, with RS232 and TTL options on selected models.
- 5 to 36 VDC power input, -40 to 85 C operating range.
- Opto-isolated dry/wet contact digital inputs.
- Relay outputs rated up to 125 VAC / 0.5 A or 30 VDC / 2 A.
- Supports local logic rules for simple on-site automation.
Before Ordering
Choose the DI/DO combination first, then confirm RS485 or RS232. If the load current is higher than the relay rating, use the module output to drive an external contactor.
