2DI + 2DO + 2AI Multi-Function I/O Module Y301-220/222 Series | Industrial-Grade | Modbus RTU | Compact Relay + Analog Control
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Common Pain Points
Traditional small-scale I/O modules often suffer from rigid channel configurations limiting multi-signal adaptation, insufficient isolation causing interference or crashes in noisy environments, low relay load capacity unable to directly drive 220V loads, narrow voltage/temperature tolerance leading to failures in field conditions, and complicated integration/setup with PLC/SCADA systems — resulting in poor reliability, scalability issues, and increased deployment time/cost for small-to-medium automation and IoT projects.
Solution & Core Features
1.Compact Multi-Function Design — 2 digital inputs (dry/wet contact, opto-isolated), 2 high-load relay outputs, and 2 switchable analog inputs (0-10V / 4-20mA), perfect for space-constrained applications needing combined switch & analog control.
2.Industrial-Grade Stability — 5000V optoelectronic isolation on inputs, hardware watchdog for anti-crash protection, -40°C to +85°C wide temperature range, DC 5-36V wide voltage input for reliable operation in harsh environments.
3.Powerful Load Drive — Relay contacts rated 277VAC/10A & 30VDC/10A, directly drives 220V lamps, solenoid valves, motors, etc. (380V loads via contactors).
4.Strong Anti-Interference — Multi-level surge/overcurrent/overvoltage/reverse polarity protection, robust noise immunity ensuring stable signal acquisition and output.
5.Seamless & Fast Integration — Standard Modbus RTU protocol, DIP switch quick addressing, plug-and-play compatibility with PLC/LabVIEW/SCADA/cloud platforms.
Technical Specifications
| Parameter | Details |
|---|---|
| Model Series | Y301-220 / Y301-222 |
| Digital Inputs (DI) | 2 channels (dry/wet contact, opto-isolated) |
| Digital Outputs (DO) | 2 channels relay output |
| Analog Inputs (AI) | 2 channels (switchable 0-10V / 4-20mA) |
| Relay Contact Rating | 277VAC/10A, 30VDC/10A |
| Isolation Voltage | 5000V (opto-coupler input) |
| Communication Interface | RS485 / RS232 (optional) |
| Protocol | Modbus RTU |
| Power Supply | DC 5–36V |
| Operating Temperature | -40°C ~ +85°C |
| Relative Humidity | 0–95% RH (non-condensing) |
| Dimensions | Approx. 102.5 × 70 × 35 mm |
| Mounting | 35mm DIN rail |
Application Scenarios
Widely used in compact industrial automation (small equipment monitoring & control), smart agriculture (greenhouse fan/valve/irrigation sensor linkage), smart home/building (lighting/HVAC/access control), water treatment (pump/valve status & flow monitoring), energy management (small distribution switch & sensor acquisition), vending/kiosk systems, and any space-limited industrial IoT, process control, or remote monitoring scenario requiring reliable multi-signal I/O with easy Modbus integration.
Check the product specification sheet
