Two digital inputs and two SPDT relays rated 277 VAC 10 A or 28 VDC 10 A
Y301-220 RS485 Modbus I/O Module with 2 DI and 2 Relays
2DI+2DO I/O Module
Y301-220 combines two opto-isolated inputs and two 10 A SPDT relays for equipment control, with RS485 Modbus RTU and four local automation rules.
Key Features
Dry/wet contact sensing with 32-bit pulse counting and configurable debounce
Up to four local rules, two per output, for follow, timing, pulse, and logic control
Configurable output retention and software addressing with a 5-bit DIP offset
RS485 with optional RS232 or TTL; 5-36 VDC supply and 35 mm DIN-rail or screw mounting
Specifications
Power Supply
- Voltage
- DC 5~36V
- Typical Current
- 150 mA @ 12V
- Max Current
- 200 mA @ 12V
- Operating Temperature
- -40°C ~ +85°C
- Humidity
- 5-95% RH, non-condensing
Digital Inputs
- Channels
- 2
- Type
- Dry/wet contact, optically isolated
- Voltage Range
- 5~36V (wet mode)
- Sampling Rate
- 100 Hz
- Pulse Counter
- 32-bit, rising/falling selectable
- Debounce
- 5–255 ms (50 ms default)
Digital Outputs
- Channels
- 2
- Type
- SPDT relays
- Contact Rating
- AC 277V 10A / DC 28V 10A
- Switching Time
- <10 ms pickup / <5 ms release
- Minimum Load
- AC 10V 10 mA
- State Retention
- None / soft reboot / power-cycle configurable
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
- 82 × 54 × 32 mm
- Mounting
- 35 mm DIN clip or screw slots
- Protection
- IP20, UL94 V-0 enclosure
Product Documents
Related Products
Talk to our technical team.
Tell us about your interfaces, network environment, and deployment requirements.