Introducing the TSX AEY 420 module
(Original Document)
Overview
The TSX AEY 420 module is a high-level, fast 4-input industrial measurement device.
Used in conjunction with sensors or transmitters, it performs monitoring, measurement and continuous process control functions.
For each input, the TSX AEY 420 module provides a range of +/-10 V, 0...10 V, 0...5 V, 1...5 V, 0...20 mA or 4...20 mA, depending on selections made during configuration.
Summary
The TSX AEY 420 input module performs the following functions :
Description
The following table describes the available functions :
Address
Component
Function
1
Connection with process and Input Channels Scan
  • Hardware connection to process, through Sub-D connector(s),
  • Adapting input signals through analog filtering.
2
Multiplexing of Input Signals
  • Scanning input channels, through static multiplexing.
3
Adaptation of Input Signals
  • Adaptation of Input Signals
4
Scanning of Analog Signals Measured at Input
  • 16-bit Analog/Digital converter
5
Translating incoming values into workable measurements for the user
  • Taking into account re-calibration and alignment coefficients to be applied to measurements, as well as the module's self-calibration coefficients,
  • Scaling of measurements, based on configuration parameters.
6
Interface and Communications with Application
  • managing exchanges with CPU,
  • geographic addressing,
  • receiving configuration parameters from module and channels,
  • sending measured values, as well as module status, to application.
7
Module Power Supply
-
8
Module monitoring and sending error warnings back to application
  • testing the conversion string,
  • testing for range overflow on channels,
  • verifying that terminal block is present,
  • watchdog test.
9
Internal Reference
  • Reading an internal reference to a standard voltage allows the module to calculate its self-calibration coefficients.