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Y301-600/800/G00 Digital Input Module Specification ​

Y301-600Y301-800Y301-G00
Y301-600 Product ImageY301-800 Product ImageY301-G00 Product Image

Contents ​

  1. Overview
  2. Ordering Information
  3. Key Features
  4. Technical Specifications
  5. Interfaces and Indicators
  6. Mechanical and Environmental
  7. Installation and Wiring
  8. Communication and Configuration
  9. Notes

1. Overview ​

The Y301-600/800/G00 are digital input modules in the Y301 family, designed for discrete signal acquisition. The modules use opto-isolated inputs and communicate with PLCs, industrial PCs, or edge gateways over Modbus RTU/ASCII.

The three models differ mainly in input channel count. Power, communication, and mounting specifications remain aligned across the platform.

ModelDIDOAIAOTypical Application
Y301-6006000Small equipment status acquisition
Y301-8008000General cabinet switch monitoring
Y301-G0016000High-density point collection

2. Ordering Information ​

2.1 Model Naming ​

Y301-<DI><DO><AI><AO>-<interface>

  • Y301-600: 6DI + 0DO + 0AI + 0AO
  • Y301-800: 8DI + 0DO + 0AI + 0AO
  • Y301-G00: 16DI + 0DO + 0AI + 0AO

2.2 Interface Options ​

InterfaceDescription
RS485Supports multi-drop bus networks
RS232Suitable for point-to-point connections

2.3 SKU Examples ​

SKUInterfaceDescription
Y301-600-RS485RS4856-channel opto-isolated digital input
Y301-600-RS232RS2326-channel opto-isolated digital input
Y301-800-RS485RS4858-channel opto-isolated digital input
Y301-800-RS232RS2328-channel opto-isolated digital input
Y301-G00-RS485RS48516-channel opto-isolated digital input
Y301-G00-RS232RS23216-channel opto-isolated digital input

2.4 Standard Package ​

Module, quick reference card, and warranty information. Optional accessories include a USB-to-RS485 converter, DIN-rail power supply, and shielded twisted-pair cable.

3. Key Features ​

  1. Opto-isolated DI inputs for industrial discrete signal acquisition
  2. Supports both dry contact and active voltage input (3.3-24 VDC)
  3. 7-30 VDC supply range for common 12 V and 24 V systems
  4. Supports both Modbus RTU and Modbus ASCII
  5. Available with RS485 and RS232 serial interfaces
  6. Supports device addressing from 0 to 255 and broadcast address 254
  7. Supports baud rate settings of 2400, 4800, 9600, 19200, and 38400 bps
  8. 35 mm DIN-rail mounting for standard cabinets

4. Technical Specifications ​

4.1 General Specifications ​

ParameterSpecification
Supply voltage7-30 VDC
Data interfaceRS485, RS232
ProtocolModbus RTU, Modbus ASCII
Default serial format9600, N, 8, 1
Optional baud rates2400, 4800, 9600, 19200, 38400 bps
Address range0-255 (broadcast address 254)
Power indicator1 LED
Operating temperature-40 to +85 C
Mounting35 mm DIN rail
Dimensions120 x 70 x 35 mm
WeightApprox. 60 g

4.2 Digital Input Specifications ​

ParameterY301-600Y301-800Y301-G00
DI channel count6816
Input typeOpto-isolated discrete inputOpto-isolated discrete inputOpto-isolated discrete input
Wiring modeDry contact / active inputDry contact / active inputDry contact / active input
Active input voltage3.3-24 VDC3.3-24 VDC3.3-24 VDC
Read methodFunction code 0x02 (discrete inputs)Function code 0x02 (discrete inputs)Function code 0x02 (discrete inputs)

5. Interfaces and Indicators ​

5.1 Interface Description ​

Interface GroupDescription
Power terminalVIN (power input positive), GND (power input negative)
Communication terminalRS485: A/B; RS232: TX/RX/GND
DI terminalDI1...DIn by model, used with the common terminal for input detection

5.2 LED Indicator ​

LEDStatusMeaning
POWERSolid onPower supply is normal

6. Mechanical and Environmental ​

ItemValue
Dimensions120 x 70 x 35 mm
Mounting35 mm DIN rail
Operating temperature-40 to +85 C
Storage recommendationDry, non-condensing environment

Recommended installation clearance: at least 15 mm above and below, and 10 mm on each side for wiring and heat dissipation.

7. Installation and Wiring ​

7.1 Power Wiring ​

  1. Connect the positive DC supply to VIN.
  2. Connect the negative DC supply to GND.
  3. Verify polarity before power-on and use upstream fuse protection when possible.

7.2 DI Input Wiring ​

  • Dry-contact input: connect the contact between the target DI channel and the common terminal.
  • Active input: wire the 3.3-24 VDC signal to the target DI channel according to the terminal definition.

7.3 Communication Wiring ​

  • RS485: use shielded twisted pair, wire A to A and B to B.
  • RS232: wire according to the host serial definition and keep signal ground common.

8. Communication and Configuration ​

8.1 Typical Query Commands (RTU, Hex) ​

ModelCommandDescription
Y301-600FE 02 00 00 00 06 EC 07Read 6 DI states
Y301-800FE 02 00 00 00 08 6D C3Read 8 DI states
Y301-G00FE 02 00 00 00 10 6D C9Read 16 DI states

8.2 Configuration Registers ​

Register (PLC notation)ParameterDescription
4x1001Communication baud rateWrite the baud-rate code
4x1003Offset addressDevice address = offset address + DIP address
4x1004Operating modeUser data register
4x1005Delay timeUser data register

8.3 Baud-Rate Codes ​

CodeBaud rate
09600
12400
24800
39600
419200
538400

After changing the address or baud rate, restart the device and update the host serial settings accordingly.

9. Notes ​

  1. When multiple devices share the same RS485 bus, each device must use a unique address.
  2. Broadcast address 254 is recommended for single-device setup only.
  3. Address 0 is not used for normal communication.
  4. If reads fail, first check serial parameters, device address, and the RS485 A/B wiring.
  5. If RS232 communication fails, verify the pinout and common-ground connection.
  • Manufacturer: Hunan YenGear Tech Co., Ltd.
  • Address: Room 21014, Building 1, Fudi Xingguang Tiandi, Yingxin Road, Yuhua District, Changsha, Hunan, China
  • Email: hi@yengear.com
  • Website: www.yengear.com