62-MODRW Modbus Okuma-Yazma Komutu

About this Video

• Video Title: 62-MODRW Modbus Okuma-Yazma Komutu
• Channel: DELTA Electronics Türkiye
• Speakers: (Speaker name not specified in transcript)
• Duration: 24:44

Introduction

This video provides a tutorial on using the MODRW Modbus read-write command. It covers Modbus communication protocols, addressing schemes, and practical examples using Delta DVP series PLCs and ES300 drivers. The video demonstrates how to configure communication settings, read and write data to driver registers, and handle potential communication issues.

Key Takeaways

• Modbus Communication Rules: The video details essential Modbus communication rules, including the single master rule per communication port.
• Addressing Schemes: The video explains different addressing schemes for Modbus communication, including data registers (holding registers, input registers), and bit addresses. It shows how to convert between decimal and hexadecimal addresses.
• Practical Example: A practical example is presented, showing communication between a PLC (acting as the master) and an ES300 driver (acting as a slave) using RS485 interface. The example covers reading output frequency and controlling the driver's start/stop.
• Troubleshooting: The video highlights troubleshooting steps and error handling, using bit flags (e.g., EN1122, EN1129) to indicate successful or failed communication.
• Programming Aspects: The video touches on programming aspects, including using a wizard to configure Modbus communication settings within a specific programming environment.