Machine Vision Systems  

Line Scan Cameras

The Datalogic MX-E Series Line Scan Cameras provide 2K to 8K greyscale imaging for inline print inspection, web inspection and surface inspection of moving materials. Designed for use with MX-E45 and MX-E90 industrial vision processors, they capture continuous webs, long components and rotating surfaces line by line through a GigE Vision interface.

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MX-E Series Line Scan Cameras

The M565, M570, M575 and M580 capture a single row of pixels repeatedly as material passes the lens. Successive rows form a two-dimensional image, allowing inspection of surfaces whose length extends beyond a conventional camera view.

In these machine vision systems, the camera acquires images and the vision processor runs the inspection software. Defect detection therefore depends on the complete configuration: optics, lighting, motion synchronisation and inspection tools.

Applications for Continuous Material Inspection

  • Printing and labels: capture moving print for checks such as missing details, streaks and registration errors where sufficient greyscale contrast is present.
  • Paper, film and textiles: image continuous webs for inspection of holes, tears, edges and surface irregularities, using illumination suited to the material.
  • Strips and long components: build an image along the moving surface for dimensional or appearance checks.
  • Rotating objects: capture the circumference as a cylindrical part rotates, with acquisition synchronised to surface movement.

All four models are monochrome cameras. They record brightness differences and do not provide colour measurement or full-colour print verification.

When to Choose Line Scan or Area Scan

Line scan is useful when a continuous web or long surface must be imaged at consistent spatial intervals. It requires controlled relative movement between the camera and the material; variations in speed must be accounted for during acquisition.

An area-scan camera is often simpler when a complete component fits within one image at the required detail level, particularly for stationary or intermittently presented parts. Area-scan cameras can also inspect moving products with suitable exposure and lighting, so production speed alone does not determine the choice.

Line Scan Camera Model Overview

Model Pixels per Line Maximum Line Rate Sensor Pixel Size Lens Mount Options
M565 2048 (2K) 51 kHz 7 µm × 7 µm C-mount, F-mount, M42-mount
M570 4096 (4K) 26 kHz 7 µm × 7 µm F-mount, M42-mount
M575 6144 (6K) 17 kHz 7 µm × 7 µm F-mount, M42-mount
M580 8192 (8K) 12 kHz 3.5 µm × 3.5 µm F-mount, M42-mount

Line rate measures rows captured per second: 51 kHz means 51,000 lines per second. These are published camera maxima, not validated inspection speeds. Exposure, illumination, image-transfer capacity and processing time must support the intended operating rate. Confirm the required lens mount and adapter when ordering.

Selecting Resolution and Line Rate

Choose the pixel count from the inspection width and the smallest feature that must be resolved. Across the material, sampling distance equals the field-of-view width divided by the number of pixels per line. Along the direction of travel, sampling distance equals material speed divided by line rate.

Illustrative sizing example: an M570 viewing a 409.6 mm-wide web samples 0.1 mm per pixel across its width. At 1 m/s, acquiring 10,000 lines per second gives matching 0.1 mm spacing along the web, below its 26 kHz maximum. An M580 covering the same width samples 0.05 mm across the web, but matching that spacing at the same speed would require 20 kHz, above its 12 kHz maximum.

This comparison makes the M570 a candidate when its detail level is sufficient and line-rate capacity matters. The M580 provides finer sampling across the same width but requires a lower material speed for equally fine sampling along it. Pixel spacing is not a validated defect-detection limit; lens performance, contrast and the number of pixels covering each defect also matter.

Processor, Power and Trigger Requirements

The cameras are documented for use with MX-E45 and MX-E90 models from the MX-E Series industrial vision processor range. Specify the processor configuration, IMPACT software version and required licences alongside the camera, particularly when extending an existing installation.

  • Image connection: GigE Vision over Ethernet.
  • Camera power: +12 to +24 VDC through a separate 6-pin connection. Maximum consumption is 3 W for M565, 4 W for M570 and 4.5 W for M575 and M580.
  • Trigger connection: a separate 12-pin connection carries frame and line triggers, including supported encoder signals.
  • Documented connection accessories: terminal block 661-0401, camera I/O cable 606-0673-xx and camera power cable 606-0674-xx; select cable lengths for the installation.

The processor’s PoE camera ports do not replace these cameras’ separate power connection. Camera trigger inputs also require the documented signal levels; check the encoder interface before connecting machine signals.

Lighting, Optics and Installation

A typical installation needs a lens covering the full sensor width, illumination concentrated along the inspection line, stable mounting and a method of synchronising capture with movement. For variable-speed webs, encoder-based triggering can maintain consistent line spacing when configured for the required travel distance per trigger.

Reflective foil, transparent film and textured fabric require different lighting arrangements. Test representative good and defective samples at the intended production speed before specifying detection thresholds or reject behaviour.

The cameras have IP30 housings, with no rated water protection. Published operating conditions are 0 to +50°C and 20–80% relative humidity, non-condensing. Camera weight is approximately 240 g without a lens, or 330 g with an F-mount adapter. Check the mechanical drawing with the selected lens, adapter and cable clearances before allocating mounting space; dusty or wet locations require suitable additional protection.

Compatibility Questions

Can the camera connect to an existing PC or another vision platform?

GigE Vision identifies the image interface, but compatibility also depends on the host software, camera support, acquisition settings and licensing. Provide the existing platform and software version for assessment before treating the camera as a replacement.

Can an existing lens be reused?

A matching mount is only the first requirement. The lens must cover the sensor and resolve the required detail at the intended field of view and working distance. Supply its model number and any adapter details for review.

Request a Line Scan Camera Quote

MarvelTech can review camera selection, processor requirements and production-line integration. The quotation scope depends on the camera and mount, optics, lighting, power and trigger accessories, processor, software licences and any agreed installation or support work. Request confirmation of model availability, lead time, warranty and service coverage for your location.

Send MarvelTech the material type, inspection width, minimum and maximum line speeds, smallest defect to detect, working distance and available mounting space. Include sample images or parts, encoder details, existing processor and software information, and the required alarm or reject action so the proposed configuration can be assessed against your production requirements.

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Datalogic Line Scan Cameras FAQs

When should I choose a Datalogic line scan camera instead of an area-scan camera?

Choose line scan for continuous webs, long components or rotating surfaces that must be imaged progressively as they move. For individual parts that fit within one image at the required detail level, an area-scan option such as the P2x smart camera may simplify installation. Base the choice on inspection coverage, motion control and required detail; production speed alone is insufficient.

What is the difference between the M565, M570, M575 and M580?

The models trade pixels per line against maximum line rate: M565 provides 2048 pixels at up to 51 kHz, M570 provides 4096 at 26 kHz, M575 provides 6144 at 17 kHz, and M580 provides 8192 at 12 kHz. All are greyscale cameras. Higher pixel counts provide finer sampling across the same inspection width, but the lower line-rate ceiling can constrain sampling along fast-moving material.

Does an 8K line scan camera detect smaller defects than a 4K camera?

An 8K camera provides twice as many samples across the same inspection width as a 4K camera, but pixel count alone does not establish the smallest detectable defect. Divide the field-of-view width by the pixels per line to calculate sampling distance. Then assess lens resolution, defect contrast, motion blur and sampling along the material. Detection limits require testing with representative defects.

How do I calculate the line rate needed for my production speed?

Divide material speed by the required distance between successive captured lines, using consistent units. In a hypothetical application, 2000 mm/s divided by 0.1 mm requires 20,000 lines/s, or 20 kHz. This is below the M570’s published maximum but above the M580’s. Exposure, lighting, data transfer and inspection processing must also support that rate; the calculation establishes an acquisition requirement, not validated inspection throughput.

Do line scan cameras need an encoder on a variable-speed conveyor?

Encoder-based triggering is usually appropriate when conveyor speed varies and consistent spacing between image lines matters. An encoder measures movement so capture can follow distance travelled. With a fixed line rate, changing speed changes image proportions along the direction of travel. Specify encoder resolution, signal type, maximum speed and any reverse movement so the trigger interface and acquisition settings can be checked.

Can these line scan cameras inspect printed labels and verify print colours?

They can support label and print inspection where faults produce visible greyscale differences, such as missing print, streaks or displaced features. The M565, M570, M575 and M580 do not capture colour images. Different ink colours can appear similar in greyscale, so colour matching or detecting a wrong-colour print requires a suitably specified colour inspection system.

Can Datalogic line scan cameras inspect reflective foil or transparent film?

These materials are candidates for inspection when the lighting arrangement makes the target defect distinguishable from acceptable material. Reflections, transparency and surface texture can obscure defects despite sufficient pixel resolution. Assess illumination direction, background and exposure using good and defective samples at production speed. Specify the actual fault to detect, rather than requesting general “surface inspection”.

Which processor and software do these line scan cameras require?

The documented MX-E configurations use MX-E45 or MX-E90 processors running IMPACT inspection software. These cameras acquire images; the processor executes the inspection program. Review the MX-E processor configurations and software licensing against camera count and processing workload. For an existing PC or another vision platform, verify support for the exact camera and acquisition mode; a GigE Vision interface alone does not establish software compatibility.

Can the cameras receive power through an MX-E processor’s PoE port?

No. These four line scan models require a separate 12–24 VDC supply and do not support Power over Ethernet. Ethernet carries image data, while power and external triggering require their appropriate connections. Include the camera power supply, Ethernet cable and required trigger cables in the installation scope, and check trigger signal compatibility before connecting the encoder or machine controls.

Can I reuse an existing lens with an M565, M570, M575 or M580?

Possibly, if its mount, sensor coverage and optical performance suit the selected camera. The M565 supports C-, F- and M42-mount options; the M570, M575 and M580 support F- and M42-mount options. A matching thread is insufficient: the lens must cover the full sensor and resolve the required detail at the intended working distance. Provide the lens model and adapter details, including M42 thread pitch.

Are these IP30 line scan cameras suitable for dusty or wet production areas?

The IP30 housing is not dust-tight and has no rated water protection. Published operating temperature is 0 to +50°C. Dusty, wet or washdown installations therefore need suitable additional protection. Allow for heat dissipation, cable entries and optical-window cleanliness when specifying an enclosure, since contamination in the viewing path can affect the inspection image.

What information should I provide for a line scan camera quotation?

Provide material type, inspection width, minimum and maximum speeds, smallest relevant defect, working distance and available mounting space. Include acceptable and defective samples, encoder details, existing processor and software versions, and the required alarm or reject action. Use the line scan camera enquiry form to request a configuration covering optics, lighting, connection accessories, processing and licences, with availability and any installation or support scope confirmed separately.

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