Every long-term facility operator knows the feeling. A building goes sideways, the vendors circle up, and every one of them has a clipboard explaining why it isn’t their fault. Weeks get burned on split testing, scoping, and finger-pointing while the building still doesn’t work right. And on a multi-vendor OT network, there is almost never a neutral referee in the room.
Now imagine you have signed up to run that building for the next thirty years, with financial penalties attached to every performance miss. That is the job of EllisDon Facilities Services (EDFS), a division of one of Canada’s leading employee-owned construction and building services companies. Under their Public-Private Partnership (P3) agreements, EDFS carries contractual responsibility for how buildings perform, often for decades. In that world, “whose fault is this?” is not a rhetorical question. It is a line item.
EDFS manages 20 million square feet of facilities across healthcare, K-12, correctional, and commercial markets in Canada — mostly under long-term P3 agreements procured through government partners. OptigoVN is already deployed across five sites, with a portfolio-wide rollout underway.
The people signing off on those performance reports — general managers, facility owners, Health Authority representatives — are not BACnet controls engineers. When something goes wrong on a multi-vendor network, they don’t need a protocol lecture. They need a number they can act on.
No Common Language
The challenge at EDFS is one every long-term operator knows. On a multi-vendor BACnet network, every party can look at their own slice of the system and confidently claim the issue isn’t with their work, so neither is the repair. Without an independent, objective view of the network, disputes are hard to close — and expensive to let drag on.
Pranjal De, Director of Technical Services at EDFS, has spent 20 years in building automation and nine of them using Optigo’s tools — first as an Engineering Manager at Modern Niagara Building Controls, and now at EllisDon. He describes the communication gap directly. “I’ve got facilities managers, I’ve got Health Authority people that don’t know anything about BACnet networks, but they see a number. And that number gives them reference to an issue that they’re experiencing.”
One Score, Zero Arguments
EDFS needed a way to cut through the finger-pointing with a single, trusted reference point. They turned to OptigoVN, which translates complex BACnet traffic into a network health score that non-technical stakeholders can read at a glance.
That score now anchors EDFS’s quarterly performance reports. De’s team presents just four numbers to facilities leadership: the OptigoVN network health score, alongside maintenance, energy, and comfort scores from a separate fault detection and diagnostics platform. Four numbers. That’s the complete executive summary of how a building is performing.
When the score drops, De doesn’t have to explain broadcast storms or duplicate device IDs. He shows the number and asks the relevant vendor a simple question: what happened on your project?
Real-World Results: One Call, Case Closed
Recently at an EDFS site, the lights started flickering. The lighting contractor showed up and immediately pointed the finger: BACnet traffic from EllisDon’s systems, they claimed, was flooding their network. Without network visibility, that kind of confident claim can trigger weeks of split testing and escalating vendor disputes.
De ran OptigoVN against the OT segments. One segment had no connection to the lighting system at all. The second did — and the data showed excess reads originating from the lighting system, while EllisDon’s systems were not writing to it excessively. The claim didn’t hold up. De pulled up the OptigoVN data and walked the lighting contractor through it on the spot. “Without that tool, I’d be splitting networks and scoping networks and pointing fingers forever. It just shut down that conversation.”
The contractor went back, investigated, and found a driver issue on their own network segment. A dispute that could have taken weeks was resolved in one meeting.
The pattern isn’t new. Earlier — while De was still at Modern Niagara and EllisDon was his client — he dropped Optigo’s tooling onto another struggling multi-vendor site and returned a network health score of 14%. That single data point gave facility ownership everything they needed to authorize the remediation work. The score has since recovered to approximately 50%, with diagnostic work ongoing.
Why the Score Belongs in the Foundation
For De, OptigoVN is not a bolt-on troubleshooting tool. He thinks about the tech stack as three pillars — a foundational layer, an analytics layer, and a service layer — and he puts OptigoVN squarely in the foundation, alongside BAS inputs, metering, and cybersecurity. “If I don’t have clean data, if I don’t understand the quality of the data in my networks coming into all the analytics tools that I have, all the AI tools, the cloud-based tools that I’m building my facilities off of — how do I trust anything else?”
The logic is simple: fault detection and diagnostics tools are only as reliable as the data underneath them. Ghost reads, duplicate device IDs, and misconfigured traffic turn FDD alerts into noise. Validating network health before you layer analytics on top is a prerequisite, not an add-on.
De’s approach to cost is consistent with how he managed it at Modern Niagara: absorb the tool as overhead, build buy-in with end users, then deploy it as a line item in the service contract.
“I don’t understand why anybody wouldn’t want to use it. It’s an insurance policy. And it’s pretty inexpensive compared to everything else sitting in the stack.”
Use the Score Before the Argument Starts
The pattern of value De has built around OptigoVN shows up across the full lifecycle of a facility:
- Pre-Deployment: Map the network before analytics or new integrations get layered on, so nobody inherits a mess.
- Construction and Commissioning: Catch duplicate device IDs, routing issues, and traffic problems in real time, before handoff.
- Long-Term Operations: When a multi-vendor upgrade causes a drop in the health score, asset managers don’t need to be BACnet experts. They know exactly who to call.
Stop Arguing. Start Scoring.
A 30-year facility management agreement is a long time to run a network you can’t see into. And the contractors on the other side of every dispute will always be able to say “it’s not us.” The only way to cut through that is a neutral number everyone in the room can read.
Don’t let hidden BACnet issues eat your margin, your schedule, or your client relationships. See what OptigoVN can do for you and sign up for a free trial today at https://www.optigo.net/signup/.
