A & B Packaging retrofitted their packaging & cleaning equipment from pre-programmed PLC boards to the Vision570™ & Vision350™
Unitronics allows more flexibility to react to their customer’s overall needs- versus giving them a canned package.
Their biggest advantage with the Unitronics PLC is the lower overall cost.
A&B Packaging of Lawrence, MI, USA
specializes in fresh packing and
cleaning equipment for fruits and
THEIR PROBLEM? They had been
using custom, pre-programmed PLC
boards to control their packaging
and cleaning equipment that had
quickly become out of date. They
were facing upgrading and reprogramming
costs of over $85,000
on top of additional costs per-board.
Ultimately, they were unable to
change the program on their own,
which forced them to add an outside
THE SOLUTION? Unitronics’ V570
and V350 PLCs with onboard HMIs
were brought in to give A&B
Packaging more flexibility to react
to their customer’s unique needs;
versus giving them a canned
package. “Our biggest advantage
with the Unitronics PLC is the lower
overall cost.” Said Allen Roggow,
Field Tech Supervisor for A&B
Packaging. “These units also gave
us the ability to customize software
and gave us the benefit of having
one database to put together the
Most of the units A&B Packaging is
using are the V570’s due to the size
of the screens (5.7”) and the
restrictions on their panel size. They
are utilizing the V350 models for
their smaller machinery.
“As with any new software, there is
a learning curve that has to be dealt
with. Once it became clear how to
use the software, it became easier
and easier to use.” Says Roggow.
“The training seminars that
Unitronics put on were also a great
help, as was our local distributor,
J.P. Motors & Drives.”
To learn more about Unitronics V350 & V570 models.
Hygienic Pigging Systems (HPS) of Nottingham, UK is a world leader in the development, production, installation and commissioning of pipeline pigging systems for liquid process companies. HPS’ need for a controller stemmed from their need to custom design and manufacture client specific Pigging solutions for more complex multi-source / multi-destination applications. “We had a demo system that we wanted to use to show customers how a pigging system works and what equipment is involved,” Said Ashley Parr, of HPS. “This needed to have an operator interface and a PLC to control the equipment, as well as enough I/O to accommodate and mimic the equipment.” This demo system is located on their demo rig, which is used for exhibitions and in their demonstration room. It will become their standard for all of their more complicated installations.
During production, a pipe work system’s internal liquid is often changed at the end batch or for a change in production demands. Normally, this would mean flushing the pipe work out with the cleaner while it is still full of production liquid until all traces of the liquid are removed. HPS supplies pigs that have a high tolerance fit to the pipe work. These are then moved through the pipe automatically (using a series of valves) to separate one liquid from another. This process makes cleaning (CIP) more efficient, reduces waste and minimizes down time on product change over. The Vision1210 controls the valves in this application and hence the “pig”. This allows an automated efficient change over from one product to another.
“We decided to use the V1210 because we wanted a nice big display to show off the graphics.” Parr says, “Instead of having to buy a PLC & HMI separately, this option enabled us to have both in one unit, which directly translated into cost reduction for the equipment and a more space efficient solution.” Ashley goes on to say, “The huge advantage of this PLC was that with everything built-in, the communications and use of tags in the HMI was so simple and intuitive. We used the snap-in I/O for the back of the unit as this offered an ideal compact solution. The support from the Unitronics team and local distributors i4 Automation was excellent. Within the first few days of playing around with the software I had a lot of questions about what I could and could not do. The response was quick and solved my issues every time.”
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Thinking of saving money by using a Combined PLC & HMI? *Loan units available for evaluation, Try before you buy! *Special introduction discount on first order. *All new customers get free training on one of our courses. *Free programming software (including remote access, webserver, OPC and .NET drivers). *Free UK support, the best in the country. Looks too good to be true? Yes T & C Apply, if you want to find out more please give us a call.
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