GDT Series: End Data Loss with Modbus Communicating Digital Transmitters

Amazeng Technical Team
5 min read
Modbus RTUModbus TCPGDT SeriesData SecurityIndustrial Communication

Introduction

In the world of industrial communication, "Modbus" has become the de facto standard due to its simplicity and reliability. However, carrying sensitive data collected in the field through this protocol without corruption, delay, and with the highest resolution is not something every transmitter can do. In this article, we examine how the Amazeng GDT Series Digital Transmitters end data loss based on Modbus communication.

Risks of Traditional Methods

When collecting data with old-style analog transmitters, you are trapped by the resolution of the analog input card on the PLC side. The signal can pick up interference on the way or be misread due to calibration shifts. This leads to unacceptable errors, especially in applications that require high precision like weighing and force measurement.

Power of Modbus with GDT Series

The GDT Series digitizes data with 24-bit resolution while it's still at the sensor tip. Beyond this point, data is no longer a "current" or "voltage," but a "numerical value."

Modbus RTU (RS485) Advantages:

  • Daisy-Chain: Connect dozens of GDT devices to the PLC over a single cable, reducing wiring costs.
  • Differential Signal: Thanks to the RS485 physical layer, it works safely even in motor drive panels under high electromagnetic noise.

Modbus TCP (Ethernet) Advantages:

  • High Speed: It can connect directly to the network infrastructure for the IT/OT integration of modern factories.
  • Remote Access: With GDT-TCP models, you can instantly access data at the other end of the factory.

Product Placement: Full Integration with GDT Series

The Amazeng GDT Digital Transmitter family adapts to all automation architectures with both Modbus RTU and Modbus TCP options. While observing the data in the field thanks to the 7-segment display on the device, you can simultaneously transfer it to your PLC/SCADA system via Modbus registers.

The device's internal digital inputs and outputs (I/O) can be controlled via Modbus; this makes it not just a transmitter, but also a distributed I/O module.

Conclusion

Data loss in industrial processes means faulty production and downtime. Switching to Modbus-based digital communication ensures your data reaches its destination with 100% accuracy from its source.

To access technical documents about our Modbus communicating GDT products or to receive system integration support, you can fill out our quote request form.

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