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The Five Steps to a Successful Automation Project
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- Budget
realistically. You can't make a silk purse from a sow's
ear. Paying less for something that doesn't work is not
saving money. Know what you getting from your controls
selection and the integrator up front, be
specific. Consider purchasing "blanket" time from
the integrator. These are blocks of time usually purchased
at a discount from your integrator to work with you or your
staff on planning or implementing projects. This will allow
you to use your integrators expertise on several projects
and can keep your budget in line.
- Plan for the
future. The most important step in an automation project
is planning. Look toward the future now for expanding your
project to include communications and compatibility with
other systems. Spending more for an Ethernet capable
processor is often less than adding a communications package
later. Allow for additional I/O points on your equipment. We
recommend at least 20% spare input and 10% spare output
capability on most projects. Having spare I/O wired and
terminated in your panel is a time and headache saver for
those "bells and whistles" someone will surely want to add
later.
- Commonality.
Look at the way other programs in your plant are structured.
If you don't have programming specifications, write them, or
have your integrator write them for you. Downtime is broken
down into a Search vs. Repair ratio. In most cases the time
it takes to find a problem is greater than the time it takes
to repair the problem. Having your programming following the
same structure from one machine to the next means less
search time for your technicians when problems do arise, and
less training time on new equipment.
- Reporting /
Indication. Report as much of the status of your process
as feasible to your interface. Tank levels, temperatures,
switch status, etc. are well worth the money and time
invested. An indication on the screen gives the operator and
machine repair technician direction as to where and why a
problem is occurring and leads to faster repair times.
- Documentation.
Insist on complete and logical documentation. Identify I/O
points in the programming documentation with references to
the sheet and line number of your electrical drawings.
Assign I/O and wire numbering in a logical easy to follow
fashion. Specify to your integrator what you want
specifically in regards to documentation and wire numbering
schemes. When possible have all documentation, including
device "cut sheets" on one master CD ROM. This will be
invaluable when the paper copies are lost or no longer
legible.
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