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Kabel-verifieringsenhet – Automatisera verifieringen av mätsignaler i kablar

Sadiq, Mohid LU and Mezher, Hasan Khaled LU (2026) In CODEN:LUTEDX/TEIE EIEL05 20261
Division for Industrial Electrical Engineering and Automation
Abstract
In many production and validation industries, cable verification is usually done using manual testing with a multimeter, a process that requires time and is prone to human errors.
The goal of this project was to develop an automatic cable verification device, with the capability of validating cable functionality and detecting potential faults, while also being able to read both analog and digital inputs.
The system was implemented using a Beckhoff PLC programmed in TwinCAT, where
various I/O modules were used to meet the required measurments for potential faults in cables that could be open circuit to short circuits. To verify that the system worked as intended, cables were manually constructed to simulate the different fault scenarios.... (More)
In many production and validation industries, cable verification is usually done using manual testing with a multimeter, a process that requires time and is prone to human errors.
The goal of this project was to develop an automatic cable verification device, with the capability of validating cable functionality and detecting potential faults, while also being able to read both analog and digital inputs.
The system was implemented using a Beckhoff PLC programmed in TwinCAT, where
various I/O modules were used to meet the required measurments for potential faults in cables that could be open circuit to short circuits. To verify that the system worked as intended, cables were manually constructed to simulate the different fault scenarios.
The resulting device successfully detected all possible fault scenarios, with a display that provided clear information around detected scenarios, where they were located moreover a representation of how the problem looks in the cable. The fault scenarios were even tested while being combined with each other that was also successful by the use of digital an analog measuring.
Compared to manual testing, the device reduced testing time significantly, completing a full cable measurement in 15 seconds rather than the minutes it typically required during the study. Future improvements can be made including an HMI that could make the measurement of different amounts of conductors more clear and a multiplexer that would reduce the size of the device (Less)
Abstract (Swedish)
I de flesta produktion och valideringsmiljöer brukar kabel-verifiering testas manuellt med en multimeter, en process som kräver både tid och är utsatt för mänskliga misstag. Målet med detta examensarbete var att tillverka en automatisk kabel-verifieringsenhet med förmågan att kunna validera funktionaliteten i en kabel och detektera potentiella fel scenarier. Dessutom var målet att kunna läsa ut både digitala och analoga signaler.
Systemet var implementerat genom Beckhoff PLC, programmerat i TwinCAT, där olika I/Omoduler användes för att nå önskade mätningar till potentiella fel som exempelvis kortslutningar eller avbrott. Verifieringen av hur funktionellt systemet var gick ut på att manuellt tillverka kablar som simulerade olika fel... (More)
I de flesta produktion och valideringsmiljöer brukar kabel-verifiering testas manuellt med en multimeter, en process som kräver både tid och är utsatt för mänskliga misstag. Målet med detta examensarbete var att tillverka en automatisk kabel-verifieringsenhet med förmågan att kunna validera funktionaliteten i en kabel och detektera potentiella fel scenarier. Dessutom var målet att kunna läsa ut både digitala och analoga signaler.
Systemet var implementerat genom Beckhoff PLC, programmerat i TwinCAT, där olika I/Omoduler användes för att nå önskade mätningar till potentiella fel som exempelvis kortslutningar eller avbrott. Verifieringen av hur funktionellt systemet var gick ut på att manuellt tillverka kablar som simulerade olika fel scenarier.
Resultatet visade en lyckad enhet som detekterade alla fel scenarier, med en display som visade tydlig information kring upptäckta fel, vart de felen uppstod samt en representation om hur de ser ut i kabeln. Utöver enskilda fel testades även kombinationer av olika fel scenarier som verifierades genom digitala och analoga mätningar.
Jämfört med manuell testning, enheten reducerade testningen med en god marginal och avslutade en hel kabel mätning inom 15 sekunder, till skillnad från minuterna de brukade ta vid manuell mätning. Framtida implementationer kan utföras såsom ett HMI som stödjer olika mängder av pins med ett tydligare slutresultat och en multiplexer som kan minska storleken på enheten. (Less)
Please use this url to cite or link to this publication:
author
Sadiq, Mohid LU and Mezher, Hasan Khaled LU
supervisor
organization
course
EIEL05 20261
year
type
M2 - Bachelor Degree
subject
keywords
HMI, TwinCAT, Beckhoff, Kablage, Verifiering.
publication/series
CODEN:LUTEDX/TEIE
report number
3155
language
Swedish
id
9244367
date added to LUP
2026-09-28 10:35:18
date last changed
2026-09-28 10:35:18
@misc{9244367,
  abstract     = {{In many production and validation industries, cable verification is usually done using manual testing with a multimeter, a process that requires time and is prone to human errors.
The goal of this project was to develop an automatic cable verification device, with the capability of validating cable functionality and detecting potential faults, while also being able to read both analog and digital inputs.
The system was implemented using a Beckhoff PLC programmed in TwinCAT, where
various I/O modules were used to meet the required measurments for potential faults in cables that could be open circuit to short circuits. To verify that the system worked as intended, cables were manually constructed to simulate the different fault scenarios.
The resulting device successfully detected all possible fault scenarios, with a display that provided clear information around detected scenarios, where they were located moreover a representation of how the problem looks in the cable. The fault scenarios were even tested while being combined with each other that was also successful by the use of digital an analog measuring.
Compared to manual testing, the device reduced testing time significantly, completing a full cable measurement in 15 seconds rather than the minutes it typically required during the study. Future improvements can be made including an HMI that could make the measurement of different amounts of conductors more clear and a multiplexer that would reduce the size of the device}},
  author       = {{Sadiq, Mohid and Mezher, Hasan Khaled}},
  language     = {{swe}},
  note         = {{Student Paper}},
  series       = {{CODEN:LUTEDX/TEIE}},
  title        = {{Kabel-verifieringsenhet – Automatisera verifieringen av mätsignaler i kablar}},
  year         = {{2026}},
}