2DO I/O Module

I/O Module、、、、

Y301-020 Dual Relay Output Modbus Module

Model: Y301-020

Key Features

  • Two SPDT relays deliver AC 277 V/10 A or DC 28 V/10 A switching capacity

  • Automation supports follow, delay, pulse, interlock, and logic scenes per channel

  • Stores DO state across power cycles with selectable retention mode

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Overview

Miniature Modbus-RTU relay node that delivers two SPDT outputs for pumps, valves, or lighting loads inside space-constrained control boxes.

Key Features

  • Two SPDT relays deliver AC 277 V/10 A or DC 28 V/10 A switching capacity

  • Automation supports follow, delay, pulse, interlock, and logic scenes per channel

  • Stores DO state across power cycles with selectable retention mode

  • RS485 Modbus-RTU/ASCII with 5-bit DIP + software address and 9–36 VDC supply

Specifications

Power SupplyVoltageDC 5~36V
Typical Current≈100 mA @ 12V
ProtectionReverse polarity, hardware watchdog
Operating Temperature-40°C ~ +85°C
Digital OutputsChannels2
TypeSPDT relays
Contact RatingAC 125V 0.5A / DC 30V 2A
Switching Time
Endurance100k cycles
CommunicationInterfacesRS485 (default), RS232, TTL optional
ProtocolModbus-RTU slave
Baud Rate600–230400 bps (9600 default)
Slave Address1–255 software configured
MechanicalDimensions77.4 × 22.5 × 16.2 mm
Mounting35 mm DIN rail or dual M3 screws
ProtectionIP20, UL94 V-0 enclosure

Documentation & Support