Four opto-isolated digital inputs, four SPDT relays, and four analog inputs
Y301-444 RS485 Modbus I/O Module with 4 DI, 4 DO, 4 AI
4DI+4DO+4AI I/O Module
Y301-444 combines four digital inputs, four 10 A relays, and four 16-bit analog inputs, with RS485 Modbus RTU and eight local rules for process control.
Key Features
0-10 V, 0-5 V, or 4-20 mA analog ranges with 16-bit resolution and +/-1% full-scale accuracy
Up to eight local rules, including analog-threshold, pulse, and timed relay control
277 VAC 10 A or 28 VDC 10 A relay contacts with configurable output retention
5-36 VDC supply and RS485 Modbus RTU, with optional RS232 or TTL interfaces
Specifications
Power Supply
- Voltage
- DC 5~36V
- Typical Current
- 200 mA @ 12V (all DO off)
- Max Current
- 280 mA @ 12V (four relays on + AI sampling)
- 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)
- 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
- 4
- 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
Analog Inputs
- Channels
- 4
- Input Type
- 0-10 V / 0-5 V / 4-20 mA, configurable per channel
- Resolution
- 16-bit
- Accuracy
- +/-1% FS
- Sampling Rate
- 10 Hz
- Overvoltage Protection
- +/-30 V
- Input Impedance
- Voltage mode: >100 kohm; current mode: 250 ohm
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
- 145 x 90 x 40 mm
- Mounting
- 35 mm DIN clip or screw slots
- Protection
- IP20
Product Documents
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