What Is A Signal Converter?


Currently, in the digital age, there are many modern devices with specialized features born. Each device has its own built-in signal. So how can multiple devices work seamlessly together? To simplify that problem, the signal converter was born as an answer. So what are signal converters, what features do they have and what types are there, what manufacturers?

Let’s find out together!

First of all, we need to understand, signal conversion is the transformation of a signal from input A to output B according to a requirement or purpose. Accordingly, we can better understand the signal converter or signal conversion device. A signal converter is a device used to turn the output signal from a device into a completely new signal, the purpose of which is to ensure the output signal and help users handle the necessary problem.

The types of signals commonly converted in industry are analog signals (Analog), digital signals, pulse signals (pulse). … and especially with analog signals, 4-20mA, 0- 10v, 1-5v, 2-10v are 4 out of 10 analog signals commonly used in factories and industrial zones. 4-20mA is the signal that almost 90% of factories use because of its outstanding performance.

Each signal converter has its own unique characteristics. We can take simple examples: an analog to modbus converter will convert the 4-20mA, 0-10v signals to the modbus RTU signal stream or the RS485 modbus signal or the converter. PT100 temperature sensor signal is used to convert PT100 temperature to signals 4-20mA, 0-10v or relay signals, etc.

Some commonly used signal converters are:

Temperature signal converter:

Analog signal converter:

Input is a 0-10V analog signal through a 4-20mA or 0-20mA output signal converter

0-20mA analog signal input via a 4-20mA or 0-10V output signal converter


Pulse signal converter :

The input is a pulse signal through a signal converter that is converted into an output signal of 4-20mA, 0-20mA, 0-10V… The input is a pulse signal through the signal converter, which is converted into an output signal of another frequency pulse. There are also signal converters from one standard to another such as:

  • RS232/485/422 to Ethernet converter, Optical, Wifi,
  • Hart 5/7 communication

If before, these converters were provided by a few major manufacturers: Pepperl Fuchs, MTL, Phoenix contact, etc., now they are offered in a variety of ways with more manufacturers and origin from many countries. than. Some typical companies can be mentioned: ATC, USR, 3onedata, AOA, … from a variety of countries: China, Taiwan, Australia, …