1DI + 1DO configuration with one SPDT relay rated 277 VAC 10 A or 28 VDC 10 A
Y301-110 Mini 1DI+1DO Modbus I/O Module
1DI+1DO I/O Module
Ultra-compact Modbus-RTU module that pairs one opto-isolated digital input with one relay output for alarms, pushbuttons, and actuator control inside dense automation cabinets.

Key Features
Digital input supports dry or wet contact, pulse counting, and 5~255 ms debounce
Supports local DI-to-DO automation in the shared Y301-110/200/020 control platform
5 to 36 VDC supply with RS485 Modbus RTU by default and optional RS232 or TTL variants
Specifications
Power Supply
- Voltage
- DC 5~36V
- Typical Current
- 80 mA @ 12V (all DO off)
- Max Current
- 120 mA @ 12V (all DO on)
- Operating Temperature
- -40°C ~ +85°C
- Humidity
- 5% ~ 95% RH, non-condensing
Digital Inputs
- Channels
- 1
- Type
- Dry/wet contact, opto-isolated
- Voltage Range
- 5~36V (wet contact mode)
- Input Current
- <5 mA per channel
- Sampling Rate
- 100 Hz
- Pulse Counter
- 32-bit, selectable rising/falling edge
- Debounce
- 5~255 ms (default 50 ms)
Digital Outputs
- Channels
- 1
- Type
- SPDT relay
- Contact Rating
- 277 VAC 10 A / 28 VDC 10 A
- Minimum Load
- 10 VAC 10 mA
- Switching Time
- <10 ms operate / <5 ms release
- Electrical Life
- 100k cycles at rated load
- Output Retention
- None / soft reboot / full retention
Communication
- Interfaces
- RS485 (2-wire), optional RS232 or TTL
- Protocol
- Modbus RTU slave
- Baud Rate
- 600~230400 bps (default 9600)
- Slave Address
- 1~255 (software) + DIP offset 0~31
Mechanical
- Dimensions
- 77 x 54 x 32 mm
- Mounting
- 35 mm DIN clip or screw slots
- Protection
- IP20
Product Documents
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