Introducing the TSX AEY 1614 module
(Original Document)
About us
Overview
The TSX AEY 1614 module is a 16 thermocouple input industrial measurement device.
Module TSX AEY 1614 offers the following ranges for each input, according to the selection made during configuration  :
NOTE: The TELEFAST2 accessory referenced ABE 7CP A12 facilitates connection and provides a cold junction compensation device.
Summary
The TSX AEY 1614 input module performs the following functions :
Description
Details of the functions are the following:
Address
Component
Function
1
Adaptation and multiplexing
"Adaptation" consists in a common mode and differential mode filter. It is followed by channel multiplexing through opto-switches, in order to provide the possibility of common mode voltage between channels (up to 400V). A second layer of multiplexing allows for self-calibration of the acquisition device offset, as close as possible to the input terminal, as well as selecting the cold junction compensation sensor included in the TELEFAST housing.
2
Amplification
Built around a weak-offset amplifier. Lopping (peak suppression) on the input to the amplifier allows it to withstand voltage spikes of up to 30V.
3
Conversion
The converter receives the signal issued from an input channel or from the cold junction compensation. Conversion is based on a  Σ Δ 16 bits converter.
4
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,
  • (numeric) filtering of measurements, based on configuration parameters,
  • scaling of measurements, based on configuration parameters.
5
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 the application.
6
Module Power Supply
-
7
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.
8
Cold junction compensation:
  • integrated in the TELEFAST ABE 7CP A12,
  • must be provided by user if TELEFAST is not used.