Rockwell Automation Capacitive Sensors User Manual
Capacitive Sensors
Bulletin Number 875F, 875L
User Manual
Original Instructions
Capacitive Sensors User Manual
Important User Information
Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize
themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required to
be carried out by suitably trained personnel in accordance with applicable code of practice.
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be
impaired.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use
or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for
actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software
described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is
prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
WA RN I NG : Identifies information about practices or circumstances that can cause an explosion in a hazardous environment,
which may lead to personal injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.
IMPORTANT Identifies information that is critical for successful application and understanding of the product.
Labels may also be on or inside the equipment to provide specific precautions.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).
2 Rockwell Automation Publication 875-UM001A-EN-P - March 2021
Table of Contents
Preface
Who Should Use This Manual? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Download Firmware, AOP, EDS, and Other Files . . . . . . . . . . . . . . . . . . . . 5
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 1
Product Overview Non-IO-Link Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
875L AC Cylindrical Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
875F DC Flat Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
IO-Link Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
875L DC Cylindrical Cap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 2
Configure with IO-Link Common Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Identification Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Observation Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Parameter Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Diagnosis Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Chapter 3
Switch Output Configuration Sensor Front. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
SSC (Switching Signal Channel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Switchpoint Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Hysteresis Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Margin Alarm 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Temperature Alarm (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
External Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Input Selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Logic Function Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AND Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
OR Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
XOR Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Gated SR-FF Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Timer Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Output Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Output Stage Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Rockwell Automation Publication 875-UM001A-EN-P - March 2021 3
Chapter 4
Teach Procedure External Teach (Teach-by-wire). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Teach-by-wire Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Teach from IO-Link Master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Single-point Mode Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Two-point Mode Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Windows Mode Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Chapter 5
Sensor-specific Adjustable
Parameters
Local or Remote Adjustment Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Process Data and Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Sensor Application Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Temperature Alarm Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Safe Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Event Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Quality of Run (QoR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Quality of Teach (QoT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Filter Scaler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Status Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Appendix A
Specifications Non-IO-Link Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
875L AC Cylindrical Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
875F DC Flat Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
IO-Link Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
875L DC Cylindrical Cap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Appendix B
Parameter Values Device Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
SSC Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Output Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Sensor-specific Adjustable Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Diagnosis Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
4 Rockwell Automation Publication 875-UM001A-EN-P - March 2021
Preface
This manual is a reference guide for Bulletin 875F and 875L capacitive
proximity sensors with IO-Link. It describes how to install, configure, and use
the device.
Who Should Use This Manual?
Ter mi nol ogy
This manual contains important information regarding installation. Qualified
personnel familiar with proximity capacitive sensors must be read and
understand this manual completely. We recommend that you read the manual
carefully before installation of the sensor. Save the manual for future use.
Te rm D ef in it i on
I/O Input/output
PD Process data
PLC Programmable logic controller
SIO Standard input/output
SP Setpoints
IODD I/O device description
IEC International Electrotechnical Commission
N.O. Normally open contact
N.C. Normally closed contact
NPN Pull load to ground
PNP Pull load to V+
Push-Pull Pull load to ground or V+
QoR Quality of run
QoT Quality of teach
UART Universal asynchronous receiver-transmitter
SO Switching output
SSC Switching signal channel
Download Firmware, AOP, EDS, and Other Files
Additional Resources
Download firmware, associated files (such as AOP, EDS, and DTM), and access
product release notes from the Product Compatibility and Download Center at
rok.auto/pcdc
.
These documents contain additional information concerning related products
from Rockwell Automation.
Resource Description
EtherNet/IP Network Devices User Manual, ENET-UM006
Ethernet Reference Manual, ENET-RM002
Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1 Provides general guidelines for installing a Rockwell Automation industrial system.
Product Certifications website, rok.auto/certifications
. Provides declarations of conformity, certificates, and other certification details.
You can view or download publications at rok.auto/literature
Rockwell Automation Publication 875-UM001A-EN-P - March 2021 5
Describes how to configure and use EtherNet/IP™ devices to communicate on the EtherNet/
IP network.
Describes basic Ethernet concepts, infrastructure components, and infrastructure features.
.
Notes:
6 Rockwell Automation Publication 875-UM001A-EN-P - March 2021
Product Overview
Status Indicator
Sensitivity
Max
Min
Sensitivity
Adjustment AC Models
Programmable N.O. or N.C.
)by selector switch back view)
(2-wire device back view)
Max
Min
Sensitivity
Non-IO-Link Sensors 875L AC Cylindrical Cap
• Capacitive proximity switches with either sensing distance:
- M18 housing: 8 mm (0.31 in.) flush mounted in metal or sensing
distance 12 mm (0.47 in.) non-flush mounted. Gray M18 polyester
housing with 2 m (6.6 ft) PVC cable or M12 plug.
- M30 housing: 16 mm (0.63 in.) flush mounted or 25 mm (0.98 in.)
sensing distance non-flush mounted. Gray M30 polyester housing
with 2 m (6.6 ft) PVC cable or plug.
• 2-wire AC output with make (N.O.) or break (N.C.) switching. Ideal for
use in level and plastic machinery applications.
•SCR output
• Make or break switching function
• Status indicators
• High noise immunity
• Flush and non-flush types
• Plug and cable versions
Chapter 1
Housing
Figure 1 - M18 Housing
Figure 2 - M30 Housing
Rockwell Automation Publication 875-UM001A-EN-P - March 2021 7
Chapter 1 Product Overview
Catalog Number Explanation
875 L - F 8 N 18 A2
ab c d e f
ab c
Housing Style Shielding Sensing Distance
Code Description Code Description Code Description
Cylindrical housing
L
with threaded barrel
de f
Output Function Barrel Diameter Output Type
Code Description Code Description Code Description
N Normally open (N.O.) 18 18 mm (0.71 in.) A2 2 m (6.6 ft) PVC cable
C Normally closed (N.C.) 30 30 mm (1.18 in.) R3 AC micro connector
BN.O./N.C.
FShielded 8 8 mm (0.31 in.)
GUnshielded 12 12 mm (0.47 in.)
16 16 mm (0.63 in.)
25 25 mm (0.98 in.)
875F DC Flat Cap
• Detection of water-based fluids inside a container or tube without direct
contact with the fluids.
• The sensor detects the liquids reliably while compensating for residue
film, moisture, or foam build-up from liquids such as water, milk, bodily
fluids (blood), acid, or alkaline solutions with conductivity as high as
50 mS/cm inside or outside the container wall.
• Flexible and fast universal mounting bracket.
• The sensing principle detects only the level of the liquids while ignoring
foam, film, or build-up that would cause standard capacitive sensors to
detect faultily.
Features
• Compact housing
• Supply voltage: 10…30V DC
• Output: 100 mA, NPN or PNP preset
• Make or break switching function
• Status indication for output and power ON
• Protection: reverse polarity, short circuit, and transients
• Cable and pigtail M8 plug versions
• Excellent EMC performance
• IP65, IP66, IP67, IP68, and IP69K for hose-down applications
•c-UL-us
•Ecolab
8 Rockwell Automation Publication 875-UM001A-EN-P - March 2021
Chapter 1 Product Overview
D
BA
C
E
Housing
Item Description
A Yellow status indicator (output)
B Green status indicator (power ON)
C Two M3 mounting holes
D Recessed area for cable strips, 5 mm wide (max)
E Sensing surface
Table 1 - Status Indicators
Green Status Indicator Yellow Status Indicator Output
Flashing 1 Hz OFF Full calibration (2…7 s)
Flashing 1 Hz ON Empty calibration (7…12 s)
— Flashes three times 1 Hz Successful full calibration
— Flashes three times 1 Hz Successful empty calibration
— Flashes ten times 4 Hz Unsuccessful calibration (canceled or error) (>12 s)
Catalog Number Explanation
875 F - M 10 NP 34 A2
ab c d e f
ab c
Housing Style Mounting Sensing Distance
Code Description Code Description Code Description
F Rectangular housing MFlush 10 10 mm (0.39 in.)
de f
Output Function Housing Length Output Type
Code Description Code Description Code Description
NP N.O. PNP 34 34 mm (1.34 in.) A2 2 m (6.6 ft) PVC cable
NN N.O. NPN
CP N.C. PNP
CN N.C. NPN
FP02
0.2 m (0.66 ft) PVC
cable 4-pin DC pico
Rockwell Automation Publication 875-UM001A-EN-P - March 2021 9
Chapter 1 Product Overview
D
D
A
B
C
M18 Housing
M30 Housing
A
B
C
IO-Link Sensors 875L DC Cylindrical Cap
• The sensor can be operated in IO-Link mode once it is connected to an
IO-Link master or in standard I/O mode.
• Adjustable parameters via IO-Link interface: Sensing distance and
hysteresis.
- Sensing modes: single-point, two-point, or window mode.
- Timer functions like: on-delay, off-delay, one shot leading edge, or
trailing edge.
- Logic functions such as: AND, OR, XOR, and SR-FF.
-External input.
- Logging functions: Maximum temperatures, minimum temperatures,
operating hours, operating cycles, power cycles, minutes above
maximum temperature, minutes below minimum temperature, and
so on.
Features
• A complete family. Availability in M18 in a robust PBT housing with an
operation of 2…10 mm (0.08…0.39 in.) flush or 3…15 mm (0.12…0.59 in.)
non-flush.
• The output can be operated either as a switching output or in IO-Link
mode.
• Fully configurable via output IO-Link v 1.1. Electrical outputs can be
configured as PNP/NPN/Push-pull/External input, normally open or
normally closed.
• Timer functions can be set, such as on-delay, off-delay, and one shots.
• Logging functions: temperatures, detection counter, power cycles, and
operating hours.
• Detection modes: single-point, two-point, and window mode.
• Analog output: In IO-Link mode, the sensor generates 16-bit analog
process data output that represents the dielectric value that the sensor
measures.
Housing
Item Description
A Sensitivity adjustment
10 Rockwell Automation Publication 875-UM001A-EN-P - March 2021
B Yellow status indicator
C Green status indicator
DSensing face
Catalog Number Explanation
875 L - M 8 NP 18 A2
ab c d e f
ab c
Housing Style Mounting Sensing Distance
Code Description Code Description Code Description
Cylindrical housing
L
with threaded barrel
de f
Output Function Barrel Diameter Output Type
Code Description Code Description Code Description
NP N.O. PNP 18 18 mm (0.71 in.) A2 2 m (6.6 ft) PVC cable
NN N.O. NPN 30 30 mm (1.18 in.) D4 DC micro connector
CP N.C. PNP
CN N.C. NPN
Chapter 1 Product Overview
MFlush 8 8 mm (0.31 in.)
NNon-flush 12 12 mm (0.47 in.)
16 16 mm (0.63 in.)
25 25 mm (0.98 in.)
Rockwell Automation Publication 875-UM001A-EN-P - March 2021 11
Chapter 1 Product Overview
Notes:
12 Rockwell Automation Publication 875-UM001A-EN-P - March 2021
Chapter 2
Configure with IO-Link
Bulletin 875 sensors offer five different tabs (shown in Table 2) to describe the
device functionality and operations.
Table 2 - Tab Descriptions
Tab Description
Common
(page 14
Identification
(page 15
Observation
(page 15)
Parameter
(page 16
Diagnosis
(page 17
Provides general product information about sensor specifications and IO-Link IODD information.
)
Provides sensor catalog number, series letter, product firmware, and hardware revisions.
)
Displays real-time measurement information, including distance measurement value, switching
outputs, and operation conditions.
Allows you to configure sensors by modifying parameter settings.
)
Provides information of operation status and sensor health diagnosis, and enables you to restore
)
factory default settings and physically locate the sensor for troubleshooting.
Rockwell Automation Publication 875-UM001A-EN-P - March 2021 13
Chapter 2 Configure with IO-Link
Common Tab
The Common tab contains the following device information:
Parameter Description
Vendor Provides the vendor name of the product.
Vendor Text Field that is used to describe additional product information.
Vendor ID
URL Displays the vendor URL.
Device Provides the specific catalog number of the product.
Description Describes the sensor features and range performance.
Device ID Displays the unique device ID as defined in the IO-Link specifications.
IO-Link Revision Displays the current IO-Link version that the device supports.
Hardware Revision Displays the latest sensor hardware information.
Firmware Revision Displays the latest sensor Firmware information.
Bitrate
SIO Mode
IODD Displays the complete file name of the IODD that is assigned to the product.
Document Version Displays the version control for the IODD.
Date of Creation Displays when the IODD file was creation.
Describes the vendor ID of the manufacturer of the product as designated in the
IO-Link Consortium.
Displays the supported bitrate for communications as defined in the IO-Link 1.1
standard.
Describes whether the sensor is also designed to operate without and IO-Link
connection.
14 Rockwell Automation Publication 875-UM001A-EN-P - March 2021
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