1DI+1DO / 2DI / 2DO Ultra-Compact I/O Module Y301-110 / Y301-200 / Y301-020 | Industrial-Grade | Modbus RTU | Opto-Isolated Input
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Common Pain Points
Traditional digital I/O modules often suffer from issues such as excessively large size that prevents installation in tight spaces, fixed channel configurations that lack flexibility for adaptation, weak isolation protection making them susceptible to industrial noise/electrostatic interference, low relay load capacity unable to directly drive loads, narrow power supply voltage range leading to unstable field power, complex configuration requiring frequent maintenance, and poor scalability that fails to meet the needs of small-scale precise control. These problems seriously hinder rapid deployment and long-term stable operation in scenarios such as smart homes, industrial automation, smart agriculture, and more.
Solution & Core Features
1.Ultra-compact high-density design — Extremely thin size of only 77.4 × 22.5 × 16.2 mm, with three configuration options (1DI+1DO / 2DI / 2DO), perfectly suited for space-constrained control cabinets, wall-mounting, or embedded installations.
2.Opto-isolation & industrial-grade protection — Input channels feature opto-isolation, supporting both dry contact and wet contact (active/passive switches), ESD Level 3 protection, dual watchdog (hardware + software) to prevent crashes, wide DC 5-36V input with reverse polarity protection, and full-temperature operation from -40°C to +85°C.
3.High-load relay outputs — DO contact rating: AC 125V 0.5A / DC 30V 2A, mechanical lifespan of 100,000 operations, capable of directly driving door locks, lighting, small solenoid valves (use intermediate relays for larger loads).
4.Rich linkage rules — Supports multiple automation logics such as DI triggering, pulse output, delay control, timed switching, cyclic switching, enabling easy local linkage and remote control.
5.Standard Modbus & plug-and-play — Standard Modbus RTU protocol, RS485/RS232 interfaces, tool-free push-in terminal blocks, quick configuration via web/software, compatible with PLC, LabVIEW, SCADA, cloud platforms, etc.
Technical Specifications
| Parameter | Y301-110 (1DI+1DO) | Y301-200 (2DI) | Y301-020 (2DO) |
|---|---|---|---|
| Dimensions | 77.4 × 22.5 × 16.2 mm (all models) | 77.4 × 22.5 × 16.2 mm | 77.4 × 22.5 × 16.2 mm |
| Power Supply | DC 5–36V (reverse polarity protection) | DC 5–36V (reverse polarity protection) | DC 5–36V (reverse polarity protection) |
| Digital Inputs (DI) | 1 channel (opto-isolated, dry/wet contact) | 2 channels | 0 |
| Digital Outputs (DO) | 1 channel relay | 0 | 2 channels relay |
| Relay Contact Rating | AC 125V 0.5A / DC 30V 2A | — | AC 125V 0.5A / DC 30V 2A |
| Relay Lifespan | 100,000 operations | — | 100,000 operations |
| Baud Rate | 600 ~ 230400 bps (default 9600) | 600 ~ 230400 bps (default 9600) | 600 ~ 230400 bps (default 9600) |
| Data/Stop/Parity | 8/9 bits, 1/2 stop, NONE/ODD/EVEN (default 8,1,NONE) | Same | Same |
| Protocol | Standard Modbus RTU | Standard Modbus RTU | Standard Modbus RTU |
| Operating Temperature | -40°C ~ +85°C | -40°C ~ +85°C | -40°C ~ +85°C |
| Protection | ESD Level 3, dual watchdog, anti-corrosion metal shell | Same | Same |
| Mounting | DIN rail / wall-mount bracket | DIN rail / wall-mount bracket | DIN rail / wall-mount bracket |
| Wiring | Tool-free push-in terminal block | Tool-free push-in terminal block | Tool-free push-in terminal block |
Application Scenarios
Widely used in smart homes and building automation (remote linkage for lighting/door locks/appliances), industrial automation (status monitoring and execution control for small equipment), smart agriculture (greenhouse fans/irrigation valves/curtain automation), security monitoring (infrared triggering/alarm linkage), water management and environmental protection (small pump/valve on-off control), livestock farming (feeders/ventilation/environmental linkage), as well as all space-constrained, high-reliability embedded IoT, process control, and remote automation scenarios requiring digital signal acquisition and output.
