Rockwell Automation Allen-Bradley 45DMS-B8LAT1-D4 User manual

Installation Instructions
Original Instructions
PHOTOSWITCH Distance Measurement Sensor
Catalog Numbers 45DMS-B8LAT1-D4, 45DMS-B8LGT1-D5
Summary of Changes
This publication contains the following new or updated information. This list
includes substantive updates only and is not intended to reflect all changes.
Description
The PHOTOSWITCH® 45DMS distance measurement photoelectric sensor is a
compact, time-of-flight sensor that is ideal for measurement applications in
material handling and packaging environments. Background-suppression sensing
modes are ideal for applications where highly reflective backgrounds must be
ignored while helping to provide excellent reliability detection of targets within the
specified range.
The distance measurement sensor also offers a background reflection (also known
as foreground suppression) sensing mode that enables you to use the surface of a
background (for example, a conveyor) as a reflector. The detection of a target
occurs once an object blocks the visual path between the sensor and the
background (for example, a conveyor).
Features
• 5 m (16.4 ft) sensing range to 90% white and 3 m (9.8 ft) sensing range for
6% black target
• 1 mm (0.04 in.) resolution via IO-Link™ and 5 mm (0.2 in.) resolution with
4…20 mA or 0…10V analog output
• ±20 mm (0.79 in.) maximum linearity for distance measurement
applications
• Eye Safe Class 1 Laser for ease of alignment and installation
• Distance measurement, background suppression, and background
reflection sensing modes selectable using IO-Link
• Discrete only, 4…20 mA and 0…10 V on analog with adjustable range using
the push buttons
• Enhanced sensor diagnostics when using IO-Link 1.1 point-to-point
protocol helps customers minimize machine downtime and increase
productivity
• Additional virtual output when using IO-Link
• IP67 and IP69K rated enclosures
Table 1 provides indicator status in the RUN mode during sensor operation. The
sensor is always in Run mode except when the teach sequence is in process.
IMPORTANT Save these instructions for future use.
Topic Page
Summary of Changes 1
Description 1
Features 1
Sensor Configuration 2
Teach Procedures for 45DMS-B8LAT1-D4 2
Precision Teach for Background Suppression 2
Teach Procedures for 45DMS-B8LGT1-D5 3
Discrete Output Teach in Window Mode with a Negative Slope 3
Teach the Sensor 4
Invert Analog Output (45DMS-B8LGT1-D5 Only) 4
Change Analog Output from Current to Voltage (45DMS-B8LGT1-D5 Only) 4
Output Type Selection: Auto PNP/NPN, Dedicated NPN, Dedicated PNP 5
Push Button Lock/Unlock 5
Remote Teach (RT) 5
Wiring Diagrams 6
Specifications 7
Description of Laser Class 7
Topic Page
Updated Features list. 1
Updated the minimum distance between targets in Window Mode
with a Positive Slope and Discrete Output Teach in Window Mode
with a Negative Slope sections. 3
Updated Figure 4.3
Updated Figure 5.3
Updated Figure 6.4
Added sections:
• Invert Analog Output (45DMS-B8LGT1-D5 Only)
• Change Analog Output from Current to Voltage (45DMS-B8LGT1-D5
Only)
4
Updated Factory Default Settings section. 5
Updated figures:
•Figure 7
•Figure 8
•Figure 12
6
Updated Specifications table. 7
Table 1 - Operating Mode Indication
Function Status Description
Q
(discrete output)
OFF Target not present
Orange Target present
QA
(analog output)
Green • Solid: Target not present or analog output not active
• Flashing: IO-Link operation
Orange Analog output active

2Rockwell Automation Publication 45DMS-IN001B-EN-P - November 2020
PHOTOSWITCH Distance Measurement Sensor Installation Instructions
Sensor Configuration
The 45DMS sensor can be configured using the push button, remote teach, or
IO-Link with the help of the status indicators on the sensor. The following sensor
features can be configured:
• Teach sensing range: standard or precision teach
• Background suppression and background reflection (foreground
suppression) sensing modes via IO-Link.
• Light Operate (L.O.) or Dark Operate (D.O.) output
• Auto PNP/NPN, dedicated NPN, or dedicated PNP
• Push button lock and unlock
• Change sensor output from 4…20 mA to 0…10V using IO-Link
Teach Procedures for 45DMS-B8LAT1-D4
For standard teach background suppression, teach the sensitivity/sensing range is
a two-step process:
• Teach the target (first condition)
• Teach the background (second condition)
The switching threshold for output ON vs. OFF is set in between the two conditions.
1. To teach the target (first condition), place the target at the desired
distance. Press and hold the push button for 3 seconds until the orange
and green status indicators start to flash intermittently. Release the
button. The first condition has been taught.
2. To teach the background (second condition), remove the target. Press and
release the button. The teach process is complete. The sensor is now
configured to detect objects up to the maximum taught distance.
If the push button is not pressed within 30 seconds, the sensor exits the
teach mode and returns to the run mode without learning the new setting.
Figure 1 - Standard Teach Operation
The sensor can also operate as a background reflection sensor when configured
with IO-Link. See publication 45DMS-QR001 for more information on how to change
the configuration on the sensor to operate from background suppression to
background reflection mode.
Precision Teach for Background Suppression
Teach the sensitivity/sensing range on the 45DMS sensor in a two-step process:
1. Teach the target (first condition): Place the target at the desired distance.
Press and hold the push button for 3 seconds until the orange and green
status indicators start to flash intermittently. Release the button. The first
condition has been taught.
2. With the target still in the sensor field of view, press and release the push
button. The teach process is complete. The sensor is now configured to
detect objects up to the maximum taught distance with a maximum
hysteresis of 60 mm (2.36 in.).
If the push button is not pressed within 30 seconds, the sensor exits teach mode
and returns to run mode without learning the new setting.
Figure 2 - Precision Teach Operation for Background Suppression
Dynamic Teach (Run Process) - Background Suppression
Focus the sensor on the running process, press and hold the button for 3 seconds
until the yellow status indicator starts to flash. The sensitivity is automatically
taught in the next 30 seconds provided the sensor sees two cycles of target and no
target. The switching threshold for output ON vs. OFF is set in between the two
conditions.
Figure 3 - Dynamic Teach-in
Table 2 - Factory Default Settings
Description 45DMS-B8LAT1-D4 Settings 45DMS-B8LGT1-D5 Settings
Sensing range 5 m (16.4 ft) to 90% white
3 m (9.4 ft) to 6% black QA: 0.3…3 m (0.98…9.84 ft)
Q: 0.3…3 m (0.98…9.84 ft)
Sensing mode Background suppression
(single point) Background reflection (window)
Response time 2 ms
IMPORTANT The minimum distance between first target and second
target must be at least 80 mm (3.15 in.) of separation.
Q
Q
Low
Low
High
High
1/2 1/2
min 80 mm
Q / Q
N.O.
Q / Q
N.C.
12
12
IMPORTANT The switching threshold for output ON vs. OFF is set
with the smallest possible hysteresis be at least 60 mm
(2.36 in.) of separation.
Q
Q
Low
Low
High
High
max. 60 mm
Teach 1 = Teach 2
Q
Q
Low
Low
High
High
1/2 1/2
3
567

Rockwell Automation Publication 45DMS-IN001B-EN-P - November 2020 3
PHOTOSWITCH Distance Measurement Sensor Installation Instructions
Teach Procedures for 45DMS-B8LGT1-D5
The sensor discrete and analog outputs can be programmed with the use of the
following two dedicated push buttons on the 45DMS-B8LGT1-D5.
• Q: Configures the discrete output operation window of the sensor
•Q
A: Configures the analog output to operate in either positive or negative
slope
Window Mode with a Positive Slope
To teach the desired operating window with a positive slope, you must follow a
two-step process: teach the near distance to the face of the sensor (first
condition) and teach far distance from the face of the sensor (second condition).
Teach Discrete Output (Q)
1. Teach near distance (first condition): Place the target at the desired near
distance. Press and hold the Q button for 3 seconds until the orange and
green status indicator start to flash intermittently. Release the Q button.
The first condition has been taught.
2. Teach far distance (second condition): Place the target at the desired far
distance. Press and release the Q button. The teach process is complete.
Teach Analog Output (QA)
1. Teach near distance (first condition): Place the target at the desired near
distance. Press and hold the QAbutton for 3 seconds until the orange and
green status indicators start to flash intermittently. Release the QA button.
The first condition has been taught.
2. Teach far distance (second condition): Place the target at the desired far
distance. Press and release the QA button. The teach process is complete.
If the push button is not pressed within 30 seconds, the sensor exits teach mode
and returns to run mode without learning the new setting.
Figure 4 - Discrete Output Teach for Window Mode and Positive Slope
The sensor can also operate as a background suppression sensor when the
configuration is with IO-Link.
Discrete Output Teach in Window Mode with a
Negative Slope
To teach the desired operating window with a negative slope, you must follow a
two-step process: teach the far distance to the face of the sensor (first condition)
and teach the near distance from the face of the sensor (second condition).
Teach Discrete Output (Q)
1. Teach far distance (first condition): Place the target at the desired far
distance. Press and hold the Q button for 3 seconds until the orange and
green status indicators start to flash intermittently. Release the Q button.
The first condition has been taught.
2. Teach near distance (second condition): Place the target at the desired
near distance. Press and release the Q button. The teach process is
complete.
Teach Analog Output (QA)
1. Teach far distance (first condition): Place the target at the desired far
distance. Press and hold the QAbutton for 3 seconds until the orange and
green status indicators start to flash intermittently. Release the QA button.
The first condition has been taught.
2. Teach near distance (second condition): Place the target at the desired
near distance. Press and release the QA button. The teach process is
complete.
If the push button is not pressed within 30 seconds, the sensor exits teach mode
and returns to run mode without learning the new setting.
Figure 5 - Discrete Output – Window Mode – Negative Slope
IMPORTANT The minimum distance between first target and second
target must be at least 40 mm (1.57 in.) of separation.
Teach 1 Teach 2
Teach 1 Teach 2
Measurement range
min 40 mm (1.57 in.)
Q
High
Low
Q
High
Low
QA
3.6 mA / 0.06V
4 mA / 0.01V
20 mA / 10V
21 mA / 11V
IMPORTANT The minimum distance between first target and second
target must be at least 40 mm (1.57 in.) of separation.
Teach 1 Teach 2
Teach 1 Teach 2
Measurement range
Q
Q
QA
High
Low
High
Low
3.6 mA / 0.06V
4 mA / 0.01V
20 mA / 10V
21 mA / 11V

4Rockwell Automation Publication 45DMS-IN001B-EN-P - November 2020
PHOTOSWITCH Distance Measurement Sensor Installation Instructions
Background-reflection Mode Precision Teach
The 45DMS sensor requires the equivalent of precision teach (which teaches the
background twice) to achieve operation as a background reflection sensor. When
operating in background reflection mode, the sensor detects the presence of a
target when the optical path between the background and the sensor is
interrupted. This sensing mode requires a minimum separation of at least 60 mm
(2.35 in.).
1. Teach the target (first condition): Place the target at the desired distance.
Press and hold the push button for 3 seconds until the orange and green
status indicators start to flash intermittently. Release the button. The first
condition has been taught.
2. With the target still in the field of view of the sensor, press and release the
push button. The teach process is complete. The sensor is now configured
to detect objects up to the maximum taught distance with a maximum
hysteresis of 60 mm (2.35 in.).
If the push button is not pressed within 30 seconds, the sensor exits teach mode
and returns to run mode without learning the new setting.
Figure 6 - Precision Teach Operation
Teach the Sensor
Align the sensor to the background. Press and hold the button for 3 seconds until
the orange and green status indicators start to flash intermittently. Release the
button. Press the button again for less than 1 second. The sensor has been taught.
Teach Light Operate (L.O.) or Dark Operate (D.O.)
The default setting of the output is light operate (L.O.). The L.O. setting means that
output turns ON when the target is detected. If the application requires the output
to turn OFF when the target is detected, change the setting to dark operate (D.O.).
To Access the Teach Output Mode Settings
Press and hold the Q button for 10 seconds until the green status indicator starts to
flash. Release the button. The orange status indicator shows the current setting:
• L.O.: Orange status indicator ON
• D.O.: Orange status indicator OFF
To Change the Sensor Output Mode Setting
Press and release the button for less than 1 second within 10 seconds to toggle
from L.O. to D.O., the selection indicated by the orange status indicator.
The sensor retains the setting per the last press of the button and returns to the
run mode 10 seconds after the last button press.
Invert Analog Output (45DMS-B8LGT1-D5 Only)
The default setting of the analog output QAis Positive Slope, which means that the
analog value for the near distance starts at 4 mA/0.1V while the far distance ends
at 20mA/10V. If the application requires a Negative Slope, the analog near distance
starts at 20mA/10V while the analog far distance ends at 4 mA/0.1V
To invert the analog output, follow these steps:
1. Press and hold the QAbutton for 10 seconds until the green and orange
status indicators start to flash asynchronously. Release the button.
The orange status indicator shows the current setting:
• Green status indicator flashing: Positive slope
• Orange status indicator: Solid ON
2. To Invert the Analog Output, press and release the QAbutton for less than
1 second within 10 seconds to toggle from Positive Slope to Negative Slope,
the selection indicated by the orange status indicator. The orange status
indicator is OFF when negative slope is selected.
3. The sensor retains the setting per the last press of the button and returns
to the run mode 10 seconds after the last button press.
Change Analog Output from Current to Voltage
(45DMS-B8LGT1-D5 Only)
The default setting of the analog output QAis analog current 4…20mA. If the
application requires analog voltage, you can change the analog output to operate
from 0…10V by following these steps:
1. Press and hold the QAbutton for 13 seconds until the green and orange
status indicators start to flash simultaneously. Release the button.
The orange status indicator shows the current setting:
• Orange status indicator flashing: Current output
• Green status indicator: OFF
2. To change the analog output to 0…10V, press and release the button for
less than 1 second within 10 seconds to toggle from 4…20 mA to 0…10V, the
selection indicated by the orange status indicator. The orange status
indicator flashes green when analog voltage is selected.
3. The sensor retains the setting per the last press of the button and returns
to the run mode 10 seconds after the last button press.
Teach 1 = Teach 2
Teach 1 = Teach 2
Measurement range
Q
Q
QA
ZoneA
High
Low
High
Low
3.6 mA / 0.06V
4 mA / 0.01V
20 mA / 10V
21 mA / 11V
12 mA / 5V

5Rockwell Automation Publication 45DMS-IN001B-EN-P - November 2020
PHOTOSWITCH Distance Measurement Sensor Installation Instructions
Output Type Selection: Auto PNP/NPN, Dedicated
NPN, Dedicated PNP
The default setting is Auto PNP/NPN. The sensor monitors the load connection and
automatically configures for the proper operation, for example, PNP or NPN. If no
load is connected, the sensor defaults to PNP.
The following applications are covered with dedicated PNP or dedicated NPN
selection.
1. Parallel wiring of multiple sensor outputs: select dedicated PNP or
dedicated NPN setting, as needed.
2. Select dedicated NPN if the load is connected to another power supply
than the power used for the sensor.
Selection can be made as follows.
1. To access output type: Press and hold the Q push button for 12 seconds
(until both status indicators start to flash synchronously). At the release of
the button, the slow flash of the status indicators shows the current
setting of the output type as follows:
• Auto PNP/NPN: Both status indicators flash (synchronously)
• Dedicated NPN: Green status indicator flashes
• Dedicated PNP: Orange status indicator flashes
2. To change output type: To select desired type, press and release the push
button within 10 seconds. Each press of the button cycles to the next
output setting. The status indicators show the type that is selected. The
sensor retains the setting per the last press of the button and returns to
the run mode 10 seconds after the last button press.
Push Button Lock/Unlock
The push button or remote teach (RT) can be used to stop unauthorized users from
changing teach settings.
Permanent Lock
The push button is permanently locked by connecting the white wire (pin 2) to -V.
To unlock the push button, disconnect the white wire (pin 2) on the catalog number
45DMS-B8LAT1-D4 sensor or the gray wire (pin 5) on the catalog number
45DMS-B8LGT1-D5 sensor.
Remote Teach (RT)
The sensor can be taught remotely via the gray wire (pin 5). Connection to -V acts
the same as the button being pressed and no connection is the same as the button
not being pressed. The sensor can be taught by following the same teach/timing
sequence as used in the push button teach. For example:
1. Connect to the +V for more than 3 seconds to teach the target.
2. Disconnect from the +V.
3. Remove the target and connect to the -V for less than 1 second to teach
the second condition. See Teach the Sensor on page 4 for additional
information.
All push button functions can be implemented via Remote Teach.
Factory Default Settings
To reset the sensor configuration to the factory default settings, you must perform
the following steps:
1. Remove power to the sensor by unplugging the cordset.
2. Press and hold any button (Q or QA).
3. Plug in the cordset that provides power to the sensor. The green and
orange status indicators flash simultaneously. Keep the Q or QAbutton
pressed for at least 10 seconds until both status indicators start to flash
faster.
4. Release the Q or QApush button. The sensor is now set with the factory
default settings.

6Rockwell Automation Publication 45DMS-IN001B-EN-P - November 2020
PHOTOSWITCH Distance Measurement Sensor Installation Instructions
Wiring Diagrams
The quick-disconnect connector is shown Figure 7. The pin numbers correspond to
the male connectors on the sensor.
Figure 7 - Integral M12 QD (5-pin) - Cat. No. 45DMS-B8LGT1-D5
(1) 4…20 mA or 0…10V
(2) Remote teach
Figure 8 - Integral M12 QD (4-pin) - Cat. No. 45DMS-B8LAT1-D4
Figure 9 - Approximate Dimensions [mm (in.)]
Figure 10 - Light Spot Size Curve
Figure 11 - Sensor Repeatability Curve
Figure 12 - Characteristic Analog Curve
-UB3BU
Q1/IO-Link 4 BK
IN(2) 5GY
-
+UB
QA(1)
1
2
BN
WH
+Auto-Detect
-UB3BU
Q1/IO-Link 4 BK
IN(2) 5GY
-
+UB
QA(1)
1
2
BN
WH
+Auto-Detect
5
4
3
1
2
B
INPUT (RT)
Q/IO-Link
-U B
4BK
3BU
+
-
+U Auto-Detect
2WH
1BN
4
3
1
2
50.08 (1.97)
23 (0.90) 4.3 (0.17) Teach-in
LED 1LED 2
5.8 (0.23) Receiver
Emitter
8.6
(0.34)
M12x1
28.4
(1.12)
44
(1.73)
46
(1.81)
50
(1.97)
13.95
(0.55) 16 (0.63)
0
5
10
15
Size [mm]
Distance [m]
horizontal (x)
vertical (y)
5
43210
Distance [m]
Axial Object Approach
012345
0.8 mm
1.6 mm
2.5 mm
Repeatability [50 Hz]
3
2
1
Gray 18 %
2Black 6 %
3
White 90 %
1
15 mm
6 σ 1 σ
10 mm
5 mm
25 mm
20 mm
15 mm
Repeatability [250 Hz]
6 σ 1 σ
Distance [m]
Lateral Object Approach
012345
2.5 mm
3.3 mm
4.1 mm
Gray 18%
2Black 6%
3
White 90%
1
32
1
Q
High
Low
QA
3.6 mA / 0.06V
4 mA / 0.01V
20 mA / 10V
21 mA / 11V
AA
12
Distance [mm]

Rockwell Automation Publication 45DMS-IN001B-EN-P - November 2020 7
PHOTOSWITCH Distance Measurement Sensor Installation Instructions
Specifications Description of Laser Class
Attribute 45DMS-B8LAT1-D4, 45DMS-B8LGT1-D5
Certifications c-UL-us and CE marked for all applicable directives
Vibration 10…55 Hz, 1 mm (0.04 in.) amplitude, meets or exceeds
IEC 60947-5-2
Shock 30 g with 1 m (3.28 ft), meets or exceeds IEC 60947-5-2
MTTF • 45DMS-B8LGT1-D5: 158 years
• 45DMS-B8LAT1-D4: 187 years
Warm-up time 20 min
User Interface
Status indicators • Q: Green Discrete Output
•Q
A: Orange Output
Optical
Sensing range • 45DMS-B8LGT1-D5: 0.1…5 m (0.33…16.4 ft)
• 45DMS-B8LAT1-D4: 0.06…5 m (0.33…16.4 ft)
Resolution • Analog: <5 mm (0.2 in.)
• IO-Link: 1.2 mm (0.05 in.)
Linearity ±20 mm (0.79 in.)
Repeatability 1.2 mm (0.05 in.)
Hysteresis 20 mm (0.79 in.)
Laser type (IEC 60825-1) Class 1 Eye Safe Laser (wavelength: 655 nm; frequency: 62.5 kHz; pulse duration: 4 ns;
limit value pulse: <1.56 W)
Electrical
Adjustments Teachable using push buttons or remote teach (5-pin models)
Voltage 18…30V DC
Current consumption, max 60 mA
Sensor protection •Reversepolarity
• Short circuit
Discrete Output
Response time 2 ms for both Q and QA
Output type Auto PNP or NPN on power-up
Load current, max 100 mA
Analog Output
Range 4…20 mA (default) or 0…10 V (configurable with IO-Link)
Update rate 2 ms
Load <500 Ω (4…20 mA); more than 4k Ω (0…10 V)
Temperature drift <1 mm (0.04 in.)/K
IO-Link
Communications mode COM2
Cycle time, min 2.7 ms
Process data bit length 24 bits (3 bytes)
Specifications 1.1
Mechanical
Housing material ABS
Lens material PMMA
Environmental
Enclosure type rating IP67 and IP69K
Operating temperature -40…+ 60 °C (-40…+140 °F)
Connection type 270° rotatable integral M12 QD
Class I Laser Product
Complies with 21 CFR
1040.10 and 1040.11
except for deviations
pursuant to Laser
Notice No. 50, dated
June 24, 2007.
Caution. Do not
disassemble for repair.
Use of control or adjustments or performance of
procedures other than those specified here, may
result in hazardous radiation exposure. Do not
attempt to disassemble this sensor for repair. A
defective unit must be returned to the
manufacturer.

Publication 45DMS-IN001B-EN-P - November 2020 | Supersedes Publication 45DMS-IN001A-EN-P-August 2018
Copyright © 2020 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
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