Systems · Plant integration
Get the plant's machines working together
Most plants grow one machine at a time. The filler, the cooker, the CIP skid and the utilities each arrive with their own controller and their own screen. Each one works. The plant as a whole is harder to run, record and change.
Signs the plant has outgrown separate machines
- Operators walk between screens to start one product.
- A recipe change means editing several machines, by hand.
- Nobody can show, in one place, what happened to one batch from receiving to packaging.
- Adding a machine means another island, and another set of spares and skills.
Two different jobs: coordinate, or replace
| Approach | What it means | When it usually fits |
|---|---|---|
| Coordinate existing controllers | The machines keep their own controls. A supervising system exchanges data with them, sequences them and records what they do. | Machines that run well on their own, especially packaged OEM equipment you don't want to re-engineer |
| Replace the control functions | The machine's process control moves into the plant control system, and the old controller is retired or reduced to I/O. | Obsolete or unsupported controllers, or process units whose sequencing and recipes belong with the rest of the plant |
| A mix | Replace where the process lives; coordinate where the machine is self-contained. | Most real plants |
What a given machine can exchange depends on its controller, its communication options and its builder's documentation. We review that machine by machine before recommending an approach.
Where a compact DCS fits
ABB Freelance is a compact, integrated DCS. Its controllers, operator screens, alarms and history are configured in one engineering environment, which makes it a natural place to coordinate several process units and keep their records together. It is not the only option, and for two or three machines it may not be the right one. Separate PLCs or a compact DCS? →
How we approach it
- List every machine, its controller and what it can exchange, from your documentation and your team's knowledge, with a site visit where the agreed scope includes one.
- Decide, unit by unit, what to coordinate and what to replace.
- Design the system and the network between the machines, with segmentation and defined remote access.
- Build the panels in our UL 508A shop, and test before it ships.