Error message

  • Deprecated function: html_entity_decode(): Passing null to parameter #1 ($string) of type string is deprecated in decode_entities() (line 463 of /home1/kaixin/precision-me.com/includes/unicode.inc).
  • Deprecated function: html_entity_decode(): Passing null to parameter #1 ($string) of type string is deprecated in decode_entities() (line 463 of /home1/kaixin/precision-me.com/includes/unicode.inc).
  • Deprecated function: html_entity_decode(): Passing null to parameter #1 ($string) of type string is deprecated in decode_entities() (line 463 of /home1/kaixin/precision-me.com/includes/unicode.inc).
  • Deprecated function: html_entity_decode(): Passing null to parameter #1 ($string) of type string is deprecated in decode_entities() (line 463 of /home1/kaixin/precision-me.com/includes/unicode.inc).
  • Deprecated function: html_entity_decode(): Passing null to parameter #1 ($string) of type string is deprecated in decode_entities() (line 463 of /home1/kaixin/precision-me.com/includes/unicode.inc).
  • Deprecated function: html_entity_decode(): Passing null to parameter #1 ($string) of type string is deprecated in decode_entities() (line 463 of /home1/kaixin/precision-me.com/includes/unicode.inc).
  • Deprecated function: html_entity_decode(): Passing null to parameter #1 ($string) of type string is deprecated in decode_entities() (line 463 of /home1/kaixin/precision-me.com/includes/unicode.inc).
  • Deprecated function: html_entity_decode(): Passing null to parameter #1 ($string) of type string is deprecated in decode_entities() (line 463 of /home1/kaixin/precision-me.com/includes/unicode.inc).
  • Deprecated function: html_entity_decode(): Passing null to parameter #1 ($string) of type string is deprecated in decode_entities() (line 463 of /home1/kaixin/precision-me.com/includes/unicode.inc).

HMI

Live Chart with EtherCAT

  • Posted on: 5 February 2018
  • By: Kai Xin

Live chart is commonly needed for process monitoring. EtherCAT's fast data rate makes it possible to have very dynamic live chartiing capability. In one of recent project, I tried the live chart from a very simple QT live charting mechanism. The data used for live chart is exchanged through ADS communication interface. The chart itself is realized from QT's standard line chart. It is surprisingly easy to do this with both tools, simple and yet powerful.