8-Channel Isolated Digital Input Module

I/O Module、、、、

Y301-800 8DI Modbus Digital Input Module

Model: Y301-800

Key Features

  • Eight opto-isolated DI channels compatible with dry contact or 5–36 V wet inputs

  • Pulse counting, edge capture, and software debounce per channel

  • Automation scenes broadcast DI state to DO modules or upstream PLCs

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Overview

RS485/RS232 Modbus-RTU input concentrator with eight optically isolated channels for multi-loop monitoring and alarm aggregation.

Key Features

  • Eight opto-isolated DI channels compatible with dry contact or 5–36 V wet inputs

  • Pulse counting, edge capture, and software debounce per channel

  • Automation scenes broadcast DI state to DO modules or upstream PLCs

  • 7–30 VDC power, reverse polarity protection, RS485 Modbus-RTU/ASCII

Specifications

Power SupplyVoltageDC 7~30V
Typical Power
ProtectionReverse polarity
Operating Temperature-40°C ~ +85°C
Humidity5~95% RH
Digital InputsChannels8
TypeOpto-isolated dry/wet contact
Wet Voltage Range3.3~24V DC
Input Current
Sampling Rate100 Hz
CommunicationInterfacesRS485 (A/B/GND) or RS232 (TX/RX/GND)
ProtocolModbus RTU / ASCII
Baud Rate2400/4800/9600/19200/38400 bps (9600 default)
Slave Address0~255 (broadcast 254)
Bus Capacity32 RS485 nodes without repeater
MechanicalDimensions120 × 70 × 35 mm
Mounting35 mm DIN rail
ProtectionIP20, UL94 V-0 enclosure

Documentation & Support