eletechsup R4IOI16 16-Channel DI/DO RS485 Modbus RTU IO Board User Manual

1. Produk verbyview

The eletechsup R4IOI16 is a versatile 16-channel multi-function RS485 IO core board designed for various industrial and home automation applications. It supports Modbus RTU protocol and offers flexible configuration options for digital inputs (DI) and digital outputs (DO). This board can be easily integrated into existing IO expansion board systems via its 2.54mm pin header terminal.

Sleutel kenmerke sluit in:

• Configurable IO modes: 16DI, 16DO, 8DI-8DO, 4DI-12DO, 12DI-4DO.
• NPN/PNP input and output level switching.
• Wide power supply range: DC 6-25V (main) or DC 4-5V (secondary).
• Compact size and lightweight design.

2. Wat is in die boks

Jou pakkie moet die volgende items bevat:

• 2PCS R4IOI16 RS485 I/O Core Board (Available as 'Only Board' or 'With Pin' versions).

Image: eletechsup R4IOI16 board with pre-soldered pins.

3. Spesifikasies

Image: Physical dimensions of the R4IOI16 board.

4. Opstelling

4.1 Kragtoevoeraansluiting

The R4IOI16 board supports two power supply options:

• GS 6-25V: Connect to the designated power input terminals. This input includes anti-reverse protection.
• GS 4-5V: An alternative power input. Ensure correct polarity as reverse connection is prohibited.

4.2 Fisiese verbinding

The board features a 2.54mm pin header interface, allowing for easy connection using Dupont wires or integration into a breadboard setup. Ensure all connections are secure before applying power.

Image: R4IOI16 board showing both 'Only Board' and 'With Pin' versions.

5. Bedryfsinstruksies

5.1 MODBUS RTU Communication

The R4IOI16 communicates using the MODBUS RTU protocol. It supports standard function codes for reading and writing data:

• Write Functions: 05 (Write Single Coil), 06 (Write Single Register), 15 (Write Multiple Coils), 16 (Write Multiple Registers).
• Read Functions: 01 (Read Coils), 02 (Read Discrete Inputs), 03 (Read Holding Registers).

The board can support up to 247 devices in parallel on the MODBUS network.

5.2 Baud Rate and Parity Settings

The default baud rate is 9600. Other supported baud rates include 1200, 2400, 4800, 19200, 38400, 57600, and 115200. Parity options are None, Odd, or Even. These settings must match the master device for proper communication.

5.3 Input and Output Levels

• Invoermodus: Supports 3.3V/5V TTL level input. The default input mode is low level, with an option for high level input.
• Uitsetmodus: Provides 5V TTL level output. The default output mode is low level, with an option for high level output.

5.4 Input Port Status

The status of input ports can be queried (default behavior) or configured for automatic reporting, depending on your application requirements.

6. Konfigurasie

6.1 IO Mode Selection

The R4IOI16 offers five configurable IO modes, which can be selected using jumpers (0603 0Ω resistor or wire) on the board:

• 16DI: 16 digitale insette
• 16DOEN: 16 digitale uitsette
• 8DI-8DO: 8 Digital Inputs and 8 Digital Outputs
• 4DI-12DO: 4 Digital Inputs and 12 Digital Outputs
• 12DI-4DO: 12 Digital Inputs and 4 Digital Outputs

Image: Visual representation of the five configurable IO modes.

6.2 NPN/PNP Input and Output Level Switching

The input and output levels (NPN/PNP) can be switched by modifying specific registers:

• NPN Input & NPN Output: Register 0X00F5=0, 0X00F6=0 (Default)
• PNP Input & NPN Output: Register 0X00F5=1, 0X00F6=0
• NPN Input & PNP Output: Register 0X00F5=0, 0X00F6=1
• PNP Input & PNP Output: Register 0X00F5=1, 0X00F6=1

Image: Detailed wiring diagrams illustrating NPN and PNP input/output configurations.

6.3 Communication Anomaly Settings

The board provides settings to manage communication anomalies:

• Restart on Anomaly: By setting register 0X00F3, the board can be configured to restart if communication becomes abnormal.
• Close Outputs on Anomaly: By setting register 0X00F4, all output ports can be configured to close when communication is abnormal.

7. Onderhoud

To ensure the longevity and reliable operation of your eletechsup R4IOI16 board, follow these general maintenance guidelines:

• Hou skoon: Regularly inspect the board for dust or debris. Use a soft, dry brush or compressed air to gently clean the surface.
• Omgewingstoestande: Operate the board within its specified temperature and humidity ranges. Avoid exposure to extreme temperatures, moisture, or corrosive environments.
• Skakel af voor hantering: Always disconnect power before making any physical connections, disconnections, or adjustments to the board.
• Inspekteer verbindings: Periodically check all wiring and pin header connections to ensure they are secure and free from damage.

8. Probleemoplossing

If you encounter issues with your R4IOI16 board, consider the following troubleshooting steps:

• Geen krag: Verifieer dat die kragtoevoer korrek gekoppel is en die gespesifiseerde volume lewer.tage (DC 6-25V or DC 4-5V). Check for proper polarity, especially with the 4-5V input.
• Kommunikasie mislukking:
  • Ensure the RS485 wiring (A+, B-) is correct and secure.
  • Confirm that the baud rate and parity settings on the R4IOI16 match those of your Modbus master device.
  • Check the Modbus address of the R4IOI16 and ensure it is unique on the bus.
  • Verify that the Modbus commands being sent are correct according to the supported function codes.
• Incorrect IO Behavior:
  • Review the jumper settings for the selected IO mode (16DI, 16DO, etc.) to ensure it matches your intended configuration.
  • Check the register settings (0X00F5, 0X00F6) for NPN/PNP input/output levels to ensure they are set correctly for your sensors/actuators.
  • Verify the input/output signal levels (3.3V/5V TTL) and ensure they are compatible with connected devices.
• Intermitterende werking: Check for loose connections, power supply fluctuations, or electromagnetic interference in the environment.

If problems persist after following these steps, please contact eletechsup customer support for further assistance.

9. Waarborg en Ondersteuning

For warranty information, technical support, or any inquiries regarding your eletechsup R4IOI16 board, please refer to the official eletechsup webwebwerf of kontak hul kliëntediens direk. Bewaar u aankoopbewys as bewys van aankoop vir enige waarborgeise.

You can visit the eletechsup store on Amazon for additional product information and support resources: eletechsup Amazon Store