Distance and laser sensor ifm model OGD251

Technical specifications

Type of light

red light

Laser protection class

1

Housing

rectangular with M18 thread

Application

Industrial applications / factory automation

Operating voltage [V]

18...30 DC; ("supply class 2" to cULus)

Current consumption [mA]

45; (24 V)

Protection class

III

Reverse polarity protection

Yes

Wave length [nm]

650

Number of inputs and outputs

Number of digital outputs: 2; Number of analogue outputs: 1

Number of Inputs and Type

Laser On/ Off

Total number of outputs

2

Electrical design

PNP/NPN; (parameterisable)

Number of digital outputs

2

Output function

2 x normally open / normally closed; (parameterisable)

Max. current load per output [mA]

100

Number of analogue outputs

1

Analogue current output [mA]

4...20; (IEC 61131-2)

Max. load [Ω]

500

Analogue voltage output [V]

0...10; (IEC 61131-2)

Min. load resistance [Ω]

2500

Short-circuit protection

Yes

Type of short-circuit protection

pulsed

Overload protection

Yes

Switching frequency DC [Hz]

60

Max. light spot diameter [mm]

5

Light spot dimensions refer to

at maximum range

Background suppression [m]

< 20

Setting range object reflectivity [%]

6...900; (reflectivity; 6 % black paper; 100 % white paper)

Measuring range [m]

0.05...1

Sampling rate [Hz]

180

Parameter setting options

Distance / reflectivity; hysteresis / window; sequence modulation to avoid mutual interference between up to 5 similar devices; sensitivity; current/voltage output

Communication interface

IO-Link

Transmission type

COM2 (38,4 kBaud)

IO-Link revision

1.1.3

SDCI standard

IEC 61131-9

Profiles

Common - I&D: Identification and Diagnosis; Function: Locator; Function: ProductURI

SIO mode

Yes

Required master port type

A

Min. process cycle time [ms]

5

IO-Link process data (cyclical)

function: bit length; process value: 2 x 16; device status: 4; binary switching information: 2

IO-Link functions (acyclical)

application specific tag; operating hours counter; switching cycles counter

Supported DeviceIDs

Type of operation: DeviceID; default: 1582

Note

For further information please see the IODD PDF file under "Downloads"

Ambient temperature [°C]

-25...50

Note on ambient temperature

In ambient temperatures < -10 °C a warm-up time is necessary.; Laser is off.

Storage temperature [°C]

-30...80

Protection rating

IP 65; IP 67

EMC

EN 60947-5-2

Notes on laser protection

Caution:: laser light; laser class:: 1; EN / IEC60825-1:2007; EN / IEC60825-1:2014; Complies with 21 CFR 1040.10 except for conformance with IEC 60825-1 Ed. 3, as described in Laser Notice No. 56, dated May 8, 2019.

MTTF [years]

258

UL approval

Ta: -25...60 °C; Enclosure type: Type 1; voltage supply: Class 2; File number UL: E174191

Weight [g]

53.4

Dimensions [mm]

62 x 22.5 x 45.1

Thread designation

M18 x 1

Materials

housing: PPSU; ABS; PMMA; PBT / PC; EPDM; front pane: PMMA

Lens alignment

side lens

Display

switching status: 2 x LED, yellow; 1 x alphanumeric display, 4-digit

Operating elements

3: pushbutton

Items supplied

lock nuts: 2

Pack quantity

1 pcs.

Connector

1 x M12; coding: A; Contacts: 5

Documents / datasheets

Source reviewed: 2026-10-24

Description

Distance and laser sensor ifm part number OGD251; Operating voltage [V]: 18...30 DC; ("supply class 2" to cULus); Current consumption [mA]: 45; (24 V); Number of inputs and outputs: Number of digital outputs: 2; Number of analogue outputs: 1. Technical specifications, condition and supply feasibility are checked before ordering.