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Investigate Before You Integrate
We like to think of it as the “Check yourself before you wreck yourself” of the integration world.
The S4 Group, Inc
a phrase heard often around the S4 offices: “Investigate Before
You Integrate”. We like to think of it as the “Check yourself before
you wreck yourself” of the integration world. Most of the support calls
we receive can be resolved by one of the following three simple
The integrator added repeaters as required by the RS-485 standard. The bus is now working properly.
The installer found and corrected wiring problems on the bus that existed since the original installation. Data is now flowing normally.
The Configure Wizard failed to find all the devices on the bus. Upon investigation the integrator found that power was turned off to a section of the building for maintenance.
Here is an excerpt from a support call that we will never forget. The integrator started out doing all the right things: they took an inventory of existing equipment, they validated the field bus, and they made sure that all of the field devices were working. Everything tested perfectly when the project was started. This project looked like it was going to be a poster child success story. Then, the project was disrupted when Hurricane Sandy flooded the building. Upon resuming the integration process, the integrator reported that nothing was working reliably on three of the integrations. All of the others were doing fine. Our advice was to go back to basics and validate the bus again. The results were some of the most compromised field buses any of our partners have ever encountered, along with field devices that were not operable. We all overlooked the fact that the building went through a catastrophic event and anything that was true before the event would be subject to change. The necessary repairs were made and the project is now on its way to being the success story that we originally anticipated.
Those of you who know The S4 Group have probably noticed that I didn’t
mention an integrator name, product name, or the field bus technology.
That’s because the advice to Investigate Before You Integrate is a
universal best practice. This is one of the main themes in our live
demo / training sessions and in our Integration Boot Camps. Doing the
right up front planning, documenting current conditions, and validation
testing of the field bus and controllers all enable you to eliminate
risks and mitigate problems in the most cost effective way possible.
Why am I concerned about this seemingly ancient technology in this age
of wireless technology and Cloud-based systems? Because it’s relevant,
and you can’t control what you can’t measure - no matter what
generation technology you are working with. We are seeing more and more
requests for our S4 Open: BACnet-N2 Router to act as an on-site agent
for both local and cloud-based value added applications.
There is no difference in the technology that we deliver. The
difference is that in the “agent” scenario the integrator wants to
co-exist with the existing MetasysŪ supervisory controller and OWS for
an extended period of time without changing the way the MetasysŪ system
works. This puts a significantly heavier load on the legacy N2 bus: any
pre-existing problems are going to bubble up when the system is
stressed harder than ever before. If you’re building upon a legacy
framework, you can’t ignore it.
Every successful integration starts the same way, say it with us now: “Investigate before you integrate!” Before starting the integration, you must:
Laying this groundwork means you understand the legacy environment that
you are going to integrate into and you are ready to start the actual
integration process. There is always risk involved in integrations,
however, now you are approaching the integration process in a way that
means you understand the weaknesses of the legacy system, you know the
expected results, and you are ready to move forward, armed with the
information you need to control and mitigate that risk. Your
integration will proceed predictably and cost effectively, resulting in
the highest value possible, whether you are doing a more traditional
migration of a building to new technology or introducing new services
and capabilities via the latest cloud based services.
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