KEYENCE XG-8000 Line Scan Visual Debugging Guide

Confirm if the lighting power is turned on (the PWR LED of CA-DC21E should be on).

Adjust shutter time: If the shutter speed is ≤ 3 μ s but the Line Trigger Cycle is smaller, the shutter cannot complete the exposure (the 3 μ s difference must be followed).

Check 'Lighting Expansion Unit' in Capture Options and specify the correct light number.

8.3 Vertical displacement or skipping rows in the image

Encoder pulse counting abnormality: Use an oscilloscope to check the A/B phase signals and ensure a phase difference of 90 °. Adjust the Sampling Mode (1x/2x/4x) in Encoder Settings to match the encoder resolution.

Direction error: If the actual motion direction causes the image to reverse, you can set it to CW (clockwise counting only) in the Encoder Direction or enable Reverse Detection for reverse counting at the same time.

8.4 Communication Error (RS-232C or Ethernet)

Check if the port settings are consistent with external devices (baud rate, parity).

When using XG VisionTerminal, ensure that the firewall is not blocking UDP ports.

For USB connections, if frequently interrupted, investigate nearby sources of interference such as frequency converters and solenoid valves. Plug and unplug the USB cable and restart the software.

8.5 SD card error

Green indicator light: normal; Red: Accessing (cannot be unplugged); Extinguish: Can be safely removed.

Before removing the SD2 card, you must first select Stop SD2 Operation from the function menu, click OK, the indicator light will turn off, and then unplug it.

The SD1 slot cover plate is fixed with screws to prevent accidental removal during operation.

Debugging tools: Linescan Intensity Calibration and Edge Graph

Linescan Calibration: Real time display of the grayscale curve and differential curve of the selected row. Can be used for precise focusing (making the differential peak steepest), adjusting the angle of the light source to obtain a flat grayscale distribution.

Edge Graph: In running mode, selecting the edge detection tool can dynamically display the edge intensity change curve to assist in determining whether the threshold setting is reasonable.

Trend Edge Profile: displays the average, maximum, and minimum values of segmented edge positions, suitable for detecting changes in width or translation.