1D and 2D codes
Read common 1D/2D codes independent of their rotational position within the configured image.
ifm · optical identification
ifm O2I Multicode Readers
Read and verify 1D/2D codes, printed characters and text for product identification, traceability and process control. O2I combines industrial image capture, integrated illumination and ifm Vision Assistant logic for applications that need more than a simple barcode presence signal.
1D + 2D codesOCR / textUp to 1.2 MPVision Assistant
Identification1D / 2DMultiple code types
TextOCRCharacters and text verification
Image1.2 MPO2I5 smart vision generation
SetupOne-button + IVATeach plus Vision Assistant
Identification capabilities
One device for codes, text and verification logic
O2I5 is designed for traceability and product-control tasks where code content, text or position must be evaluated rather than simply detecting that a mark exists.
Text recognition
Read and verify characters such as serial numbers, dates and product markings.
Variable backgrounds
Use multiple image settings and polarisation/illumination options for changing colour, gloss or contrast.
Verification
Compare read content against expected values and generate OK/not-OK results in Vision Assistant logic.
Applications
Trace products and verify the right information at the right process step
O2I is strongest when the code or text is part of the production decision: component identity, batch/date validation, process routing or automated sorting.
Serial / batch / date
Read manufacturing dates, expiry dates, serialisation and product IDs.
Verify the right part
Compare code content with production data before welding, assembly, filling or another controlled step.
Sorting & material flow
Read carrier, package or product codes to route material and reduce manual identification errors.
Optical identification
Image capture + illumination + code/text algorithms
The reader is selected around working distance, field of view, mark type, code size, target speed and the communication route. O2I5 also offers multiple image settings and monitoring functions to keep the read process stable.
01Code / text
→
02Image + illumination
→
03O2I decode / OCR
→
04PLC / traceability data
LensStandard, wide-angle and telephoto variants cover different working distances and fields of view.
LightVisible red is suited to many printed codes; infrared is useful for selected direct-part marks and colour-independent tasks.
One-button teachAutomatic focus, exposure and code-type setup speeds simple commissioning.
Vision AssistantUse for multiple codes, ROI logic, text recognition, verification and complex output logic.
Product selection
Select lens, light source and network from the application
The current O2I5 family includes standard, wide-angle and telephoto lenses with visible-red or infrared illumination. Representative fieldbus variants are shown below; final order number depends on the required protocol.
| Lens | Typical operating distance | Light | EtherNet/IP / TCP/IP | PROFINET / TCP/IP |
|---|---|---|---|---|
| Standard | 85…2000 mm | Red / IR | O2I500 / O2I501 | O2I510 / O2I511 |
| Wide-angle | 35…1000 mm | Red / IR | O2I502 / O2I503 | O2I512 / O2I513 |
| Telephoto | 200…4000 mm | Red / IR | O2I504 / O2I505 | O2I514 / O2I515 |
IO-Link route: IFM also offers IO-Link code-reader variants such as O2I420, while the newer O2U combines code/OCR and object inspection in one universal IO-Link vision sensor.
Technology choice
O2I, O2U or RFID?
Optical identification is not automatically the best traceability technology. The marking, line-of-sight, environment and amount of data determine the route.
| Requirement | Route | Use when |
|---|---|---|
| Read visible 1D/2D codes and OCR | O2I | Line-of-sight marking is available and code/text is the main task. |
| Code + object inspection via IO-Link | O2U | One vision sensor should combine identification and inspection. |
| Identification without line of sight / reusable carrier memory | RFID | Tag-based tracking is more appropriate than visible marking. |
| Contour/surface inspection only | O2D5 | The job is quality inspection rather than identification. |
Requirement capture
Inputs required to select the reader
Send actual sample codes or text if available. Readability depends heavily on mark quality, contrast, size and working distance.
Mark type1D barcode, 2D code, DPM, printed text or OCR.
Working distanceMinimum / maximum distance from reader to mark.
Code sizePhysical code dimensions and module/cell size.
MotionLine speed, trigger arrangement and available exposure time.
SurfacePrinted, shiny, engraved, etched, dot-peened or variable background.
InterfacePROFINET, EtherNet/IP, TCP/IP, IO-Link or host integration requirement.