Eight opto-isolated digital inputs for cabinet switch monitoring
Y301-800 8-Channel Modbus Digital Input Module
8-Channel Isolated Digital Input Module
Y301-800 monitors eight opto-isolated switch inputs in control cabinets, with dry-contact or 3.3-24 VDC wiring and RS485/RS232 Modbus RTU/ASCII.

Key Features
Accepts dry contacts and active voltage signals from 3.3 to 24 VDC
Modbus RTU or ASCII over RS485 or RS232, with input states read by function code 0x02
Selectable baud rates of 2400, 4800, 9600, 19200, or 38400 bps
35 mm DIN-rail installation, 7-30 VDC power, and -40 to +85 C operation
Specifications
Power Supply
- Voltage
- DC 7~30V
- Operating Temperature
- -40°C ~ +85°C
Digital Inputs
- Channels
- 8
- Input Type
- Opto-isolated discrete input
- Wiring Mode
- Dry contact / active input
- Active Input Voltage
- 3.3~24V DC
- Read Method
- Function code 0x02 (discrete inputs)
Communication
- Interfaces
- RS485 or RS232 (configuration option)
- Protocol
- Modbus RTU / Modbus ASCII
- Default Serial Format
- 9600, N, 8, 1
- Optional Baud Rates
- 2400 / 4800 / 9600 / 19200 / 38400 bps
- Address Range
- 0-255; address 0 is not for normal communication; broadcast 254 is for single-device setup only
Mechanical
- Dimensions
- 120 x 70 x 35 mm
- Weight
- Approx. 60 g
- Mounting
- 35 mm DIN rail
Product Documents
Related Products
Talk to our technical team.
Tell us about your interfaces, network environment, and deployment requirements.


