SKF Enlight Collect IMx-1 User manual

Copyright ©
2019 by SKF Group
All rights reserved.
SKF Sverige AB
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Telephone: [phone]
SKF Enlight Collect IMx-1
System
User Manual
Part Number 15V-090-00087-100
Revision F– February 2022
Read this manual carefully before using the product. Failure
to follow the instructions and safety precautions in this manual can
result in serious injury, damage to the product or incorrect
readings. Keep this manual in a safe location for future reference.

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Table of contents
1Product description .......................................................................9
1.1 Introduction to the SKF Enlight Collect IMx-1 system................................... 9
1.2 System considerations and architectures ................................................... 10
1.3 SKF Enlight Collect IMx-1 wireless sensors ............................................... 11
1.4 SKF Enlight Collect gateway ...................................................................... 11
1.4.1 Connections and interfaces.......................................................... 12
1.4.2 External antennas ........................................................................ 13
1.4.3 LED indicators.............................................................................. 13
1.4.4 Data and event time stamping ..................................................... 14
1.4.5 Data acquisition scheduling ......................................................... 14
1.4.6 Local data storage ....................................................................... 15
1.5 SKF Enlight Collect Manager – Android and iOS app ................................ 15
1.5.1 Security ........................................................................................ 17
1.6 Third party licences .................................................................................... 18
2Integration with SKF @ptitude Observer ...................................19
2.1 @ptitude Observer overview and prerequisites.......................................... 19
2.1.1 Communication with the SKF Enlight Collect IMx-1 system......... 19
2.1.2 Users and security role rights....................................................... 22
2.1.3 Enlight Collect IMx-1 System global settings ............................... 22
2.2 Hierarchy view – adding sensors and measurements ................................ 23
2.2.1 On-demand measurements ......................................................... 27
2.3 Enlight Collect IMx-1 System View ............................................................. 27
2.3.1 Gateways ..................................................................................... 29
2.3.2 Sensors........................................................................................ 30
2.3.3 Mesh Statistics............................................................................. 31
2.4 IMx-1 system configuration......................................................................... 32
2.4.1 Gateway....................................................................................... 32
2.4.2 Sensor.......................................................................................... 39
2.4.3 Synchronisation of configuration changes ................................... 40
2.4.4 Gateway or sensor Hardware ID.................................................. 41
2.5 Use of @ptitude Observer machine templates ........................................... 42
3Installation and commissioning..................................................43
3.1 Overview and prerequisites ........................................................................ 43
3.1.1 System commissioning and security ............................................ 43

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3.2 SKF Enlight Collect gateway ...................................................................... 45
3.2.1 Introduction .................................................................................. 45
3.2.2 Power requirements..................................................................... 46
3.2.3 Network connections and configuration ....................................... 48
3.2.4 Commissioning ............................................................................ 49
3.2.5 External antennas ........................................................................ 51
3.2.6 Other interfaces ........................................................................... 53
3.3 SKF Enlight Collect IMx-1 wireless sensors ............................................... 53
3.3.1 Installation considerations............................................................ 53
3.3.2 Mounting detail............................................................................. 53
3.3.3 Pre-commissioning tasks ............................................................. 54
3.3.4 Commissioning ............................................................................ 55
3.4 Relay node commissioning......................................................................... 55
3.5 Generating a commissioning report............................................................ 56
3.6 Offline commissioning ................................................................................ 57
4Maintenance functions ................................................................61
4.1 SKF Enlight Collect IMx-1 wireless sensor ................................................. 61
4.1.1 Updating sensor firmware ............................................................ 61
4.1.2 Sensor replacement or removal ................................................... 62
4.1.3 Sensor maintenance .................................................................... 63
4.1.4 Sensor performance over time..................................................... 63
4.2 SKF Enlight Collect gateway ...................................................................... 63
4.2.1 Updating firmware........................................................................ 63
4.2.2 Modify gateway network configuration ......................................... 64
4.2.3 Decommissioning......................................................................... 64
4.2.4 Replacement................................................................................ 65
4.2.5 Gateway maintenance ................................................................. 66
4.2.6 Gateway performance over time .................................................. 66
4.3 Troubleshooting.......................................................................................... 66
4.3.1 Introduction .................................................................................. 66
4.3.2 Logs and viewers ......................................................................... 67
4.3.3 IMx-1 sensor troubleshooting....................................................... 71
4.3.4 Gateway troubleshooting ............................................................. 73
4.3.5Commissioning troubleshooting ................................................... 74
4.3.6 System connectivity ..................................................................... 76
4.3.7 Gateway interfaces for SKF personnel ........................................ 77
5Product specifications.................................................................81

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5.1 IMx-1 wireless sensor specifications .......................................................... 81
5.1.1 Environmental and physical ......................................................... 81
5.1.2 Operational states and battery ..................................................... 82
5.1.3 Measurements ............................................................................. 82
5.1.4 Signal processing......................................................................... 83
5.1.5 Interfaces ..................................................................................... 83
5.1.6 Certifications ................................................................................ 84
5.2 Enlight Collect gateway specifications........................................................ 88
5.2.1 Environmental and physical ......................................................... 88
5.2.2 Power........................................................................................... 88
5.2.3 Internal measurement capabilities ............................................... 89
5.2.4 Interfaces ..................................................................................... 89
5.2.5 Certifications ................................................................................ 90
5.2.6 Gateway mounting ....................................................................... 96
5.3 Product marks and labelling ....................................................................... 97
5.3.1 Marks ........................................................................................... 97
5.3.2 Sensor.......................................................................................... 98
5.3.3 Gateway....................................................................................... 98
5.4 Quality control ............................................................................................ 98
6Electrical waste ............................................................................99
Appendix A Limited Warranty.........................................................101
SKF – Limited Warranty ....................................................................................... 101

PRODUCT DESCRIPTION
Introduction to the SKF Enlight Collect IMx-1 system
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1 Product description
1.1 Introduction to the SKF Enlight Collect IMx-1 system
The overall architecture of the SKF Enlight Collect IMx-1 System:
Figure 1 SKF Enlight Collect IMx-1 System architecture – single gateway, one sensor shown
The system consisting of sensors, gateways, analysis and visualisation software and
a mobile application for Android and iOS devices, the Enlight Collect Manager app,
provides the opportunity for a completely wireless architecture at the monitored
machinery.
One gateway and its associated wireless sensors form a communication network.
This may also include relay nodes, essentially sensors that have their measurements
disabled and that are used to support/extend the wireless mesh. A system consists of
the analysis and visualisation software and at least one gateway, although in most
systems, multiple gateways are anticipated. Different gateways might typically be
applied to different machine groups, production processes or physical plant areas.
According to a user defined schedule, the sensors measure the vibration and
temperature of the monitored machinery, pre-process the vibration signals and
transmit all the resulting data to the gateway. This is then forwarded to the analysis
and visualisation software where the final analysis is performed, and historical data is

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stored. The analysis and visualisation software, SKF @ptitude Observer, can be
installed on a local server at the customer location or as a cloud solution.
1.2 System considerations and architectures
The sensor – gateway interface is a radio system for wireless mesh networks with a
low power consumption and support for over-the-air (OTA) firmware updates. It is
specifically designed to enable reliable communication in congested wireless
environments and can identify and adapt to changes it has detected. The radio
operates on the 2.4 GHz ISM (Industrial, Scientific, Medical) band.
Whilst the wireless range will be dependent on plant topology, being a mesh system,
relay nodes can be deployed or outlying sensors can rely on the sensor mesh rather
than direct sensor/gateway communication. This assists in industrial environments
where a line of sight connection may be restricted or where sensors are situated
across wider areas. As a minimum, the system has been designed to support a
topography where there are up to 10 node jumps from the gateway to the furthest
sensor in the mesh. To provide the sensor mesh with opportunities to adapt, aim for
an installation where each node has at least 3 other nodes within wireless range.
This sensor radio interface can operate concurrently with other activity in the same
band, including the radios for:
•Wi-Fi, a network/@ptitude Observer connection option (refer Table 12
for recommendations on Wi-Fi setup).
•WPAN IEEE 802.15.1 for app interfacing: on a mobile phone, this is
known as Bluetooth®.
The type of network connection between the gateway and @ptitude Observer
software can be chosen to suit specific site requirements. A hard-wired Ethernet
connection is the default, but Wi-Fi is also provided as a wire free alternative.
Communication between the gateway/sensor and Android/iOS mobile app for on-site
sensor and gateway commissioning, is achieved over the phone’s Bluetooth Low
Energy, radio connection.
If the equipment is used in a manner not specified by the manufacturer,
both the safety and functionality of the equipment may be impaired.
Being a Wireless Condition Monitoring System, users must ensure that they
abide by the usage requirements and observe the warnings specified in the
Product Specifications, Certifications, sections for both the sensor and the
gateway.

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For the sensor commissioning, it is first woken from flight mode using the app and
the phone to provide an NFC (Near Field Communication) ‘tap’. For the gateway, the
app ‘Scan gateway’ functionality provides a list of gateways that are broadcasting. By
default, the gateway selection from the Bluetooth scan results is manual (select the
appropriate gateway from the list) but there is also a QR code option. Using the QR
code identification method for the gateway is particularly useful where multiple
gateways may be identified in the scan.
Important notes:
Wi-Fi access: for local, on premise, @ptitude Observer installations Wi-Fi access to
the server is required so that a connection to the app can be established during
commissioning and maintenance. This connection can be just temporary and can
precede the commissioning work but is required irrespective of whether Wi-Fi is used
for the network connection between the gateway and @ptitude Observer.
Mobile phone:the Android device being used for the mobile app must support NFC,
and as a minimum Android version 7 and Bluetooth Low Energy version 4.2.
The iOS device must support iOS version 7 or later. Refer to SKF Enlight Collect
Manager – Android and iOS app for further details.
1.3 SKF Enlight Collect IMx-1 wireless sensors
The IMx-1 sensor (CMWA 6100) is aimed at the monitoring of fixed plant and
equipment. This battery powered wireless sensor facilitates an Enlight Collect online
system replacing traditional periodic monitoring using portable equipment. It supports
the following measurements:
•Acceleration
•Velocity
•Enveloping
•Temperature
The sensor has a female mounting thread and can be fixed to the measuring point
via a threaded mounting stud or an adapter disc with stud, where the disc is
adhesively bonded to the machine.
1.4 SKF Enlight Collect gateway
The Enlight Collect Gateway (CMWA 6600) is placed in the production/industrial
indoor or outdoor environment, somewhere central to its associated sensors and in a
location where power and any required network connections can be made available
to it. Each gateway can manage multiple sensors: currently limited to 100 sensors.
Where possible choose a gateway location that maximises the number of IMx-1
sensors that have a direct line of sight, with it. If the Enlight collect gateway is
enclosed inside a metal enclosure, external antennas must be used.

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Note: gateways must be associated with their own set of sensors, a particular sensor
can only communicate with one gateway.
1.4.1 Connections and interfaces
The gateway is housed in an IP rated enclosure suitable for indoor or outdoor
installation (Europe) and has built-in antenna for Wi-Fi/BLE, sensor mesh
communications and mobile communication. The lower panel is the only area
normally accessible to the user and conceals connectors for all wired connections. A
view of the gateway with its various features and connections highlighted, is shown
below:
Figure 2 View on gateway and mounting plate with key features annotated
To access the connector area, unscrew the two Torx T10 screws on the lower edge
of the cover at the locations circled in the image above. Once this cover is removed,
four M12 connectors and one blanking plug are accessible:
1. Connector for dual speed inputs with transducer power (future use)
2. Connector for Ethernet link 2 (future use)
3. Connector for Ethernet link 1 and PoE
4. Connector for DC power input to the gateway

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5. Access to SIM card holder (for future use)
6. Gateway LED indicators
7. Connector for external Mesh antenna
8. Connector for external Wi-Fi/BLE antenna
9. Connector for external antenna LTE Diversity (Rx) antenna
10. Connector for external LTE Main (Tx/Rx) antenna
Important note: Only the two connectors and two external antennas listed in
bold above are usable, the remainder relate to potential future functionality
and are not currently supported. Normally, no user access is needed to the
gateway internals, all user connections are made available externally at these
interfaces.
1.4.2 External antennas
When enclosed in an additional (metal) enclosure, external antennas must be
connected to communicate via Wi-Fi/BLE, Mesh, 3G and 4G (note that 3G and 4G
are for future use). In addition, the usage of an external antenna may be required to
optimize wireless reception performance. Different antenna combinations are
available depending on the selected type of communication:
•Ethernet communication:
oMesh external antenna
oBLE external antenna
•Wi-Fi communication:
oMesh external antenna
oWi-Fi/BLE external antenna
•Mobile communication:
oMesh external antenna
oMobile external antenna
oBLE external antenna
1.4.3 LED indicators
The upper front panel of the gateway has positions for two, multi-colour, LED status
indicators – item 6 figure 2 above:
•Top, Power LED – furthest from the connector area:
oGreen fixed: gateway is powered

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oOff: gateway is unpowered
•Lower, Status LED indicator
oOff: gateway is unpowered
oWhite fixed: gateway is starting up
oYellow fixed: gateway is not commissioned
oGreen flashing: gateway is commissioned but not connected to the
backend and/or not NTP synchronised
oGreen fixed: gateway connected to the backend and synchronised
oRed fixed: fatal error (permanent fault, requires manual action)
Connected relates to the establishment of a connection between the gateway and the
@ptitude Observer MQTT service.
1.4.4 Data and event time stamping
Each gateway has a backup power capacitor which will maintain the Real Time Clock
(RTC) setting for approximately one week if the device is disconnected from power.
1.4.5 Data acquisition scheduling
The gateway is configured with four data acquisition schedules by way of Interval
and Interval alarm settings for both the Trend measurements and Dynamic
measurements. The Measurement schedule can be set in Active time period by
selecting from-to time span. The weekday on which the measurement should be
performed can also be selected. These schedules are common to sensors
associated with a machine and are set in @ptitude Observer at the Machine
Properties level, Enlight Collect IMx-1 System tab, see Gateways.
Notes on scheduling and measurements:
To ensure sensor network stability, the gateway is a master to the multiple sensor
‘slaves’ so a sensor can never initiate a measurement nor the transfer of data to the
gateway. Measurement and measurement data transfer is always at the request of
the gateway and these requests are sent sequentially to the different sensors.
After a start-up the gateway will wait for the configured interval period before
requesting the ‘first’ sensor measurements. If changes are made to the schedule and
these changes are synchronised, any ongoing measurement cycle for the machine
will complete and then the new schedule will be implemented.
In addition, whenever a sensor receives a new configuration, for example and
including its initial configuration during commissioning, the gateway will then request
that the sensor make a set of overall measurements, without waiting for the
configured time period. This ensures a timelier receipt of data during commissioning
rather than having to wait for the scheduled time to elapse.

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When the gateway first detects an alarm state change from a sensor on the machine,
that will trigger requests for representative TWF data from all sensors on that
machine.
If configured schedules cannot be met, all sensors will still be measured, but at the
best achievable rate and with some slippage from the configured schedule.
Sensors that cannot be reached are assumed to be now, in a normal, non-alarm
state.
1.4.6 Local data storage
The gateway will buffer measurement/event data until it is able to be transferred to
the host system/software. Initially, this buffering is in volatile RAM but, if the data has
not been transferred in 5 minutes then, that data is transferred to non-volatile
memory with a capacity of approximately 1 GB. This prevents significant data loss if
the gateway loses power.
Locally stored data is transferred to the host system/software on a First In First Out
basis. The design aims to safeguard at least a week of data, though the actual time
span safeguarded is dependent on the number of sensors, measurement schedule
and configuration. In the event that the local storage capacity is reached, the oldest
data stored will be overwritten by the newly collected data.
1.5 SKF Enlight Collect Manager – Android and iOS app
The SKF Enlight Collect Manager app is available for Android and iOS devices and is
used to perform on-site system maintenance, commissioning, etc.
The Android device being used must support:
•NFC – Near Field Communications
•Android version 7 or later
•Bluetooth Low Energy version 4.2 or later
Note that as NFC and Bluetooth also rely on device hardware an update of the
Android operating system is, in-itself, likely insufficient.
The iOS device being used must support:
•iPhone 7 or later, running iOS 11 or later
Note: there are no visual or behavioural differences between the Android and IOS
application.
A user logging into the app must use User name and Password credentials
appropriate to the @ptitude Observer database for the particular plant or area being
commissioned.

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For users to be able to log in through the SKF Enlight Collect Manager app,
they must be using @ptitude Observer internal user and not Active Directory
group, authentication. Refer to the SKF @ptitude Observer user manual or
help file for further details of authentication methods.
As this requires the app to be pre-configured with the MQTT service details of the
Observer instance that applies, a separate local access ‘Enter system settings’ is
available to set these details:
a) Main screen
b) Settings login
c) System settings
Figure 3 Accessing system settings
When logging in for the first time to the system settings, you can choose your
password or continue without one. This can be changed at the next screen, if
required.
Once into the system settings the first option “Add or Edit Monitors” is how the active
monitor instance can be selected or added/edited if the MQTT connection details
don’t already exist in the app:

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a) Monitors
b) Add
c) Edit
Figure 4 Access the Monitor configuration screens
As can be seen above, for each Observer Monitor instance a friendly informative
Name, an Address and a Port number are entered. As these MQTT service
address, port and secure connection settings are critical for connecting to Observer
Monitor, ensure that they correctly reflect the required instance otherwise a log-in
failure can be expected. In general, the address can be entered using domain
naming (DNS) or IP addressing noting that where communication to Monitor will be
across public networks, the address entered here should be the external facing or
public address for the MQTT service.
In addition, there is a TLS/SSL secure connection option which is on by default.
See also Security.
Multiple connections can be configured, but only one can be active at any time.
Ensure the required connection is selected by the radio button and ‘Use Selected’
has been actioned. Note that this button is ‘greyed’ if the currently selected Monitor is
already being used.
Referring back to Figure 3a, it can be seen that when the MQTT connection details
for at least one Monitor instance have been configured, the name of the
active/selected Monitor server instance is shown on the opening screen of the app,
just above ‘Enter system settings’.
1.5.1 Security
Whilst use of Transport Layer Security (TLS) for app communications with the
gateway is automatic, for connection to @ptitude Observer software it is selectable to
be able to match the settings there. If the MQTT service is configured with ‘Use TLS’
enabled, the configuration of the monitor connection in the app must similarly have
the ‘Secure Connection’ option enabled, refer to Figure 5 and
Figure 4 respectively.

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As described in 2.1.1, TLS for encrypted communications with @ptitude Observer
software requires the app to check the server security certificate when setting up the
connection. This includes verifying that the certificate is signed by an official
Certificate Authority, known to the phone. If it is not able to verify that, for example
because it is a self-signed certificate, at log in the user will be prompted to confirm if
the certificate is to be trusted, with options for Trust Just This Once, Trust Always or
Do Not Trust (No Log In).
Note that when using TLS and a trusted public Certificate Authority:
•The Address specified in the app for the Monitor connection must match the
Common Name used in the certificate. The connection must not be specified
by either an IP address or a DNS naming related, for example, to a web
service provider’s domain.
1.6 Third party licences
Some pieces of licensed software such as open source or third-party libraries have
been used when developing this product.
SKF Enlight Collect Gateway firmware version 3.4.
•For a list of these refer to the licence manifest.
SKF Enlight Collect Manager app
•A list is available on the Support page in the app.
For any enquiries contact SKF’s Technical Support Group.

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@ptitude Observer overview and prerequisites
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2 Integration with SKF @ptitude Observer
2.1 @ptitude Observer overview and prerequisites
Before starting pre-commissioning, a suitably licensed version 12.1 or later, @ptitude
Monitor/Observer, must be installed and functioning. It should have an appropriate
database available with machines created and their operating speeds set. Sub-
machines must then be defined ready for IMx-1 sensor placement. As with other
types of measurement points and hardware, the @ptitude Observer system log will
capture all configuration changes that users make.
General guidance on using @ptitude Observer software can be found in its user
manual, part number 32170900. For specific content related to the SKF Enlight
Collect IMx-1 System, this must be revision R or later.
2.1.1 Communication with the SKF Enlight Collect IMx-1 system
Like the app, the gateway uses an MQTT login so that only devices with the correct
rights can connect, so enable an MQTT service (Message Queuing Telemetry
Transport) by the tick box on the Database > Options > Monitor service tab:
Figure 5 Monitor service tab – MQTT Service
Three configuration parameters then apply:
•Use TLS (Transport Layer Security) tick box. In @ptitude Observer 12.1.1
and later the “Use TLS” checkbox enables TLS on the MQTT Service.
Enabling TLS ensures the SKF Enlight Collect IMx-1 system, including the

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SKF Enlight Collect Manager app, can verify it is connecting to the legitimate
@ptitude Observer Monitor server and facilitates encrypted data exchange
between them. This is enabled by default on new databases or on those
upgraded from @ptitude Observer 12.0 or earlier. When used, a TLS
certificate needs to be added to the Monitor service via Monitor Manager
(shortcut named: Monitor Service Manager).
The TLS also applies to the Monitor-Gateway interface.
•Listening interface: This is the network interface that Monitor will listen on
for MQTT messages. The interface is specified by its IP-address, noting that
the address entered here should always be the internal or private IP address
for the Monitor server and not its public IP address.
•Port: The port Monitor will listen to. By default, this is set to the standard TLS,
MQTT port 8883. Ensure that incoming MQTT, TCP connections to the
designated port are not blocked by a firewall and that where multiple Monitor
services are listening on that IP address, unique ports are used for each.
TLS certificate
The app to @ptitude Observer software and the gateway to @ptitude Observer
software (back-end) interfaces both support Transport Layer Security using a server
certificate and a Certificate Authority (CA) certificate stored in the back-end. The
server certificate is used when setting up the TLS connection. The CA certificate
contains information about the issuer of the server certificate and is used to ensure
that the CA can be trusted.
The server certificate can be a:
•self-signed certificate
•certificate provided by the customer’s IT department
A description of how to generate a self-signed certificate is included in the Observer
Installation manual, part number 32170700, revision Q or later, or alternatively use
the Generate function described below.
To protect against “man-in-the-middle” attacks, the CA certificate is sent to the
gateway at gateway commissioning, via the app. This CA certificate is used by the
gateway when connecting to the back-end, to verify that the server certificate is
signed by an official CA and can be trusted.
If TLS is to be used; add the server certificate using @ptitude Observer Monitor
Manager. In Monitor Manager, right click the monitor service to which the certificate
is to be added and click “properties” or select it then use Action > Properties from the
menu or just double click it: