Eight dry/wet contact inputs and eight SPDT relays with separate COM, NO, and NC terminals
Y301-880 RS485 Modbus I/O Module with 8 DI and 8 Relays
8DI+8DO I/O Module
Y301-880 provides eight opto-isolated inputs and eight 10 A SPDT relays for PLC expansion, with RS485 Modbus RTU and up to 16 local automation rules.
Key Features
Relay contacts rated 277 VAC 10 A or 28 VDC 10 A
32-bit pulse counters on each input with 5-255 ms debounce
Up to 16 local automation rules and configurable relay-state retention
5-36 VDC supply; RS485 Modbus RTU with optional RS232 or TTL and software plus DIP addressing
Specifications
Power Supply
- Voltage
- DC 5~36V
- Typical Current
- 260 mA @ 12V
- Max Current
- 350 mA @ 12 V (all relays energized)
- Operating Temperature
- -40°C ~ +85°C
- Humidity
- 5-95% RH, non-condensing
Digital Inputs
- Channels
- 8
- Type
- Dry/wet contact, optically isolated
- Voltage Range
- 5~36V (wet mode)
- Sampling Rate
- 100 Hz
- Pulse Counter
- 32-bit per channel
- Debounce
- 5–255 ms (default 50 ms)
Digital Outputs
- Channels
- 8
- Type
- SPDT relays
- Contact Rating
- AC 277V 10A / DC 28V 10A
- Minimum Load
- AC 10V 10 mA
- Switching Time
- <10 ms pickup / <5 ms release
- State 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
- 145 × 90 × 40 mm
- Mounting
- 35 mm DIN rail or screw slots
- Protection
- IP20, UL94 V-0 enclosure
Product Documents
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