Two opto-isolated digital input channels for compact status monitoring
Y301-200 Dual Digital Input Modbus Module
2DI I/O Module
Miniature Modbus-RTU node offering two opto-isolated digital inputs with pulse counting and debounce for compact alarm and status monitoring panels.
Key Features
Dry or wet contact input support with 32-bit pulse counting and 5~255 ms debounce
RS485 Modbus RTU by default with optional RS232 or TTL variants
5 to 36 VDC industrial supply in a compact DIN-rail or screw-mount enclosure
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
- 2
- 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)
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
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