Four dry/wet contact inputs and four 277 VAC 10 A or 28 VDC 10 A SPDT relays
Y301-440 RS485 Modbus I/O Module with 4 DI and 4 Relays
4DI+4DO I/O Module
Y301-440 connects four opto-isolated inputs and four 10 A SPDT relays to RS485 Modbus RTU, with eight local rules for multi-zone digital automation.
Key Features
32-bit pulse counting with selectable edge and 5-255 ms debounce
Up to eight local rules for follow, pulse, delay, schedule, and logic control
Output-state retention and software Modbus addressing with a 5-bit DIP offset
115 x 90 x 40 mm enclosure, 5-36 VDC supply, and optional RS232 or TTL interfaces
Specifications
Power Supply
- Voltage
- DC 5~36V
- Typical Current
- 200 mA @ 12 V (all DO off)
- Operating Temperature
- -40°C ~ +85°C
- Humidity
- 5% ~ 95% RH, non-condensing
Digital Inputs
- Channels
- 4
- Type
- Dry/wet contact, opto-isolated
- Voltage Range
- 5~36V (wet contact mode)
- Sampling Rate
- 100 Hz
- Pulse Counter
- 32-bit, selectable rising/falling edge
- Debounce
- 5~255 ms (default 50 ms)
Digital Outputs
- Channels
- 4
- Type
- SPDT relay
- Contact Rating
- 277 VAC 10 A / 28 VDC 10 A
- Minimum Load
- 10 VAC 10 mA
- 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
- 115 x 90 x 40 mm
- Mounting
- 35 mm DIN clip or screw slots
- Protection
- IP20
Product Documents
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