WNIP SEPT OCT 19.5 DIGITAL

14
19.5
Reduce downtime – find leakage currents without taking
equipment offline
Fluke has launched the Fluke
368 & 369 true-RMS leakage
current clamp meters that help
users detect, document, record
and compare leakage current
Power hub revamped
readings over time as a means of
preventing unplanned downtime,
and identifying intermittent GFCI
(Ground Fault Circuit Interrupter)
and RCD (Residual Current
Device) trips, all without taking
equipment off line.
The Fluke 368 has a large
(40mm diameter) jaw for work
with large conductors. The clamp’s
jaw is fully shielded to accurately
capture very small leakage
signals, and to minimize external
electromagnetic interference.
The device allows users to track
changes in leakage current over
time, helping to identify potential
problems before they turn into
major failures.
Product features:
• True-RMS measurements
for accuracy when measuring
complex, non-sinusoidal
waveforms
• 40 mm jaw opening
• Highest resolution of 1 μA,
measure up to 60 A
• Selectable filter function
removes unwanted noise
• Max/Min/Average readings
and hold function
• Forward-facing LED worklight
for use in dark wiring cabinets
• Backlit display; auto backlight
off and auto power off for
extended battery life
• CAT III 600V safety rating
• Internal Memory Logging: up
to 65,000 measurement points
Designed specifically for
industrial electricians and facilities
maintenance technicians, the 368
& 369 are invaluable for general
purpose electrical maintenance,
as well as preventative and
predictive
maintenance
and fault troubleshooting.
Specific applications include
maintenance tests on motors and
transformers and current leakage
measurements for installation
tests.
sales@comtest.co.za
Segment Coupler 3 with PROFINET
gateway and advanced diagnostics.
Gateway can be configured via
web interface or FDT/DTM frame
No sooner has digital
communication arrived in
the process industry than the
next technological revolution is
around the corner. PROFIBUS DP
is now regarded as an established
standard that is tried and tested
and has become commonplace
in many process plants.
PROFINET goes one crucial step
beyond.
This is not a complete
reinvention of the wheel, nor is it a
revolution that brings everything
that has gone before into question.
In fact, PROFINET uses the same
tried-and-tested technologies that
proved themselves with PROFIBUS
DP. Evolution would therefore be
a more appropriate term for this
than revolution. Similarly, plant
operators are presented with
good opportunities to gradually
move into the future and to rely
on future-proof infrastructure
components for modernizations
and new installations with the
PROFINET gateway.
PROFINET is basically an
industrial Ethernet variant that
has been specifically expanded
to include the PROFIBUS DP
functionality and has already
become extremely well
established in factory automation.
This allows communication at
the control level to be integrated
seamlessly into the rest of
the company's IT landscape.
Communication with PROFIBUS PA
at the field level is implemented via
PROFINET gateways.
The specially defined proxy
technology enables simple
and practical integration of bus
systems established in process
automation such as PROFIBUS PA.
From Big Data to the Internet
of Things
There is another reason why
PROFINET is the way to the future.
In a process plant, intelligent field
devices generate large volumes of
data. However, a large part of this
data is currently still untapped. This
data can easily be converted into
concretely useful information via
big data solutions. The information
is then available anywhere via
Ethernet-based systems, opening
up a wealth of new applications
that are only just beginning to
emerge. The strict separation
between the IT environment
and industrial automation has
made consistent use of this data
considerably more difficult, since
the transparency of the process
plant does not go beyond the
control center. PROFINET is the key
to eliminating such limitations.
Significantly Reduced Complexity
A consistently homogeneous
system is of course much less
complex than a heterogeneous
environment consisting of
specialized system landscapes.
PROFINET is ideal for eliminating
the previously strict separation
between the automation
environment and IT. The field level
still communicates according
to the proven protocols,
standards, and technologies,
while gateways create the direct
connection to an industrial
Ethernet-based control level. The
manufacturers of infrastructure
components have recognized
this development trend and are
increasingly starting to prepare
their solutions for the PROFINET
environment. Pepperl+Fuchs is
one of the pioneers of innovative
technologies for hazardous areas.
Power Hub with PROFINET
Gateway
The Power Hub concept is one
of their core technologies. The
company has now thoroughly
overhauled this concept and put
the entire product family on a
new foundation. The keywords
here are: extremely compact
design, different redundancy
concepts, and, for the first time,
a PROFINET gateway. The fact
that line redundancy and the S2
system redundancy of PROFINET
are supported is particularly
interesting.
The latter is based on the
principle that a gateway is
connected to two separate masters
via separate communication
paths. The result is a highavailability
system without the
need for additional hardware. If
one communication path fails
due to a cable break, the second
path is automatically used and
communication is maintained.
PROFINET also offers system
redundancy for high-availability
communication with up to four
communication paths. As soon as
control systems are available that
allow R2 system redundancy, this
solution will also be offered.