How to Analyze PLC Trace Data in Sync with Video
Overview
Plays video recorded with a webcam, phone or similar while graphing the data collected in "Read data recorded on the PLC on a PC"
Use cases
When equipment trouble occurs, you can check the PLC recording and video at the same time.
Changes in sensor inputs, servo positions, alarm states and so on can be compared with the actual equipment operation in time order, making cause analysis more efficient.
It can also be used to analyze quality defects and to tune equipment during startup.
PC screen
Reading the binary file of a structure saved on the PLC displays analog and bit data
Next, load a video file and it is shown at the top of the screen
Moving the mouse cursor over the graph changes the video playback position accordingly
Moving the video slider changes only the video playback position
Align the video playback position with the start of the graph using the slider and set the offset value (set it from the right-click menu)
Moving the mouse cursor over the graph then plays the video with the positions aligned
FAQ
Which video formats are supported?
MP4 videos can be used.
How are the video and PLC data synchronized?
By adjusting the playback position and setting an offset value.
Which PLCs can it be used with?
It can be used with the OMRON NX series and NJ series.
What applications is it suited to?
It can be used for equipment trouble analysis, quality improvement, checking operation during equipment startup and more.
