Unlocking the Secrets of Tatsuno Gas Dispenser Communication: A Comprehensive Guide to Building a Fourcourt Controller

Are you tired of feeling stuck when it comes to communicating with your Tatsuno gas dispenser? Do you dream of building a Fourcourt controller that seamlessly integrates with your gas dispenser, making your life easier and more efficient? Look no further! In this article, we’ll take you by the hand and guide you through the process of communicating with your Tatsuno gas dispenser, and provide you with a step-by-step guide on building a Fourcourt controller.

Understanding the Tatsuno Gas Dispenser Protocol

Before we dive into the world of communication and controller building, it’s essential to understand the protocol used by the Tatsuno gas dispenser. The Tatsuno gas dispenser uses a proprietary protocol, which can be a bit daunting at first, but don’t worry, we’ll break it down for you.

Tatsuno Gas Dispenser Protocol Overview

The Tatsuno gas dispenser protocol is based on the Modbus protocol, a widely used communication protocol in industrial control systems. The Modbus protocol uses a master-slave architecture, where the master device (in this case, your Fourcourt controller) sends requests to the slave device (the Tatsuno gas dispenser), and the slave device responds with the requested data.

Parameter	Description
Baud Rate	9600 bps
Data Bits	8 bits
Parity	None
Stop Bits	1 bit

Tatsuno Gas Dispenser Register Map

The Tatsuno gas dispenser has a range of registers that store different types of data, such as fuel levels, transaction history, and configuration settings. Here’s an overview of the register map:

+---------------------------------------+
| Register Address | Data Type | Description |
+---------------------------------------+
| 0x0000          | uint16    | Fuel Level 1  |
| 0x0001          | uint16    | Fuel Level 2  |
| 0x0002          | uint16    | Fuel Level 3  |
| 0x0003          | uint16    | Fuel Level 4  |
| 0x0100          | uint16    | Transaction Count |
| 0x0101          | uint16    | Transaction Value |
| 0x0200          | uint16    | Configuration Settings |
+---------------------------------------+

Building a Fourcourt Controller: A Step-by-Step Guide

Now that you have a solid understanding of the Tatsuno gas dispenser protocol, it’s time to build your Fourcourt controller! In this section, we’ll provide you with a step-by-step guide on building a Fourcourt controller that communicates with your Tatsuno gas dispenser.

Hardware Requirements

To build a Fourcourt controller, you’ll need the following hardware components:

• Microcontroller (e.g., Arduino Uno or Raspberry Pi)
• RS-485 transceiver module (e.g., MAX485 or SP485)
• Tatsuno gas dispenser communication cable
• Breadboard and jumper wires

Software Requirements

To build a Fourcourt controller, you’ll need to write a software program that communicates with the Tatsuno gas dispenser using the Modbus protocol. Here are some popular programming languages and libraries you can use:

• Arduino: ModbusMaster library
• Raspberry Pi: PyModbus library

Step 1: Connect the RS-485 Transceiver Module

Connect the RS-485 transceiver module to your microcontroller as follows:

+-----------+    +-----------+
|  Arduino  |    | RS-485  |
|  (TX Pin) |---->| (RTS Pin) |
|  (RX Pin) |---->| (TX Pin) |
+-----------+    +-----------+

Step 2: Write the Modbus Code

Write a software program that sends Modbus requests to the Tatsuno gas dispenser using the Modbus protocol. Here’s an example code snippet in Arduino:

#include <ModbusMaster.h>

ModbusMaster modbus;

void setup() {
  Serial.begin(9600);
  modbus.begin(9600);
}

void loop() {
  uint16_t fuelLevel1 = modbus.readHoldingRegisters(0x0000, 1);
  Serial.print("Fuel Level 1: ");
  Serial.println(fuelLevel1);
  delay(1000);
}

Step 3: Connect to the Tatsuno Gas Dispenser

Connect your Fourcourt controller to the Tatsuno gas dispenser using the communication cable. Make sure to follow the correct pinouts and configuration settings.

Step 4: Test the Communication

Test the communication between your Fourcourt controller and the Tatsuno gas dispenser by sending Modbus requests and verifying the responses.

Troubleshooting Common Issues

As with any complex system, you may encounter issues when communicating with your Tatsuno gas dispenser. Here are some common issues and troubleshooting tips:

Issue 1: No Communication

If you’re not receiving any responses from the Tatsuno gas dispenser, check the following:

• Verify the baud rate and configuration settings.
• Check the communication cable and connections.
• Ensure the RS-485 transceiver module is properly configured.

Issue 2: Incorrect Data

If you’re receiving incorrect data from the Tatsuno gas dispenser, check the following:

• Verify the register map and data types.
• Check the Modbus request and response formats.
• Ensure the Fourcourt controller is properly configured.

Conclusion

Communicating with a Tatsuno gas dispenser can be a challenging task, but with the right knowledge and tools, it can be a breeze. In this article, we’ve provided you with a comprehensive guide on understanding the Tatsuno gas dispenser protocol, building a Fourcourt controller, and troubleshooting common issues. With this knowledge, you’ll be well on your way to building a seamless and efficient gas dispenser system.

Additional Resources

For further information and resources, please refer to the following:

• Tatsuno gas dispenser user manual
• Modbus protocol documentation
• Fourcourt controller datasheet

We hope this article has been informative and helpful in your journey to building a Fourcourt controller that communicates with your Tatsuno gas dispenser. Happy building!

Frequently Asked Question

Got questions about building a Fourecourt controller for Tatsuno gas dispensers? We’ve got answers!