Keyence XG-X Camera
Using Cameras with a
PLC
Troubleshooting Case Study
Programmable Controller
KV-8000
Series
Troubleshooting with equipment
PLCs
Using the Machine Operation Recorder function while
controlling equipment
Equipment problems are recorded (with the Machine Operation Recorder function) at the same time as
equipment is controlled.
The camera video before and after a problem occurs, all the devices of the PLC for each scan, and the
operation history of the operator are all recorded.
Camera
Device roles
Camera
Video capturing
KV-8000
Equipment
Series
KV-8000
Series
control
Machine
Operation
Recorder
Camera
input
Series
VT5
VT5
Series
Equipment operations
and parameter
settings
Real-time
monitoring of the
camera video
Equipment
PLC
2
Details that can be recorded with the Machine Operation Recorder
function
Ladder operations, camera video, and the operation history can all be linked and played back.
Equipment
PLC ladder/
signals
The behaviour of all devices can
be checked each scan.
Camera
video
Mechanical, target, and human
movements are recorded with two types
of cameras.
HMI
operation
history
The operation history from the HMI and
the inputs from the host PC are recorded.
Troubleshooting with PLCs added
to existing installations
Using the Machine Operation Recorder function with it added to
existing equipment
Equipment problems are recorded (with the Machine Operation Recorder function) by acquiring signals from
an existing equipment PLC in a program-less manner.
The camera video before and after a problem occurs and specific devices at each communication cycle are
recorded.
Camera
Device roles
Camera
Video capturing
Existing equipment
Existing
equipment PLC
Equipment control
PLC KV-8000
PLC link
KV-8000
Series
PLC link with an
existing
equipment PLC
Machine
Operation
Recorder
* The KV-XLE02 or KV-XL202/
XL402 is required.
Series
Camera
input
*
PLC added to an
existing installation
Signals from
an existing
equipment
PLC
Linked devices can be checked at each
communication cycle.
Details that can be recorded with the
Machine Operation Recorder function
Changes to specific devices and the camera video
can be linked and played back.
Camera
video
Mechanical, target, and human movements
are recorded with two types of cameras.
Linked playback even when
added to an existing
installation
Linked playback of waveforms and video
3
Case
1
Robot path
Conventional
KV-8000
Robots
It is difficult to isolate the causes of problems in processes that use robots.
Solved with the Machine
Operation Recorder function
The behaviour of the robot is recorded, enabling quick identification of the
cause.
Image capturing target
Robot behaviour (path)
Installation results
• Because video of the problem
occurring is recorded, the issue can
be identified immediately even in
situations where operators are not
close to the machine, such as with
unmanned lines.
• The cause—be it the robot, the
operator, or something else—can be
isolated in the initial response to the
problem.
Troubleshooting details
Just the data before and after the
occurrence of a problem is recorded.
The KV-8000 can automatically record just the data before
and after the occurrence of a problem. This makes it
possible to immediately understand the situation by
eliminating the hassle of searching for the scenes to view.
Problem
Automatic recording just before and after the problem
Eliminating the hassle of searching for the scenes to view makes it
possible to understand the situation in the minimal amount of time.
Used camera
Wide field and high-resolution camera
KV-CA1W
EquipmentEquipment Added to existing installation
Judgement is fast during the initial
response to isolate the cause.
The operation history of the operator is retained and is
synchronised with the robot behaviour. This makes it
possible to accurately and quickly isolate the cause
during the initial response to the problem.
Use the camera to
1
check the operation
of the robot.
Isolate the mechanical cause. Isolate the human cause.
Use events to check
2
the operation
history.
4
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