We analyze device communications when documentation is missing or incomplete: physical interface, frame structure, commands, responses, timing and error behavior.
You do not need to prepare formal engineering terminology before contacting us. A clear business or equipment problem is enough for an initial technical discussion.
The exact deliverable set is agreed before the stage starts so acceptance is based on concrete engineering results rather than activity.
We select the architecture and tools according to interfaces, timing, environment, maintainability and production constraints.
A reliable protocol description requires more than recognizing byte patterns. We correlate traffic with known device states and deliberately vary one condition at a time.
Where active probing could affect equipment safety, analysis begins passively and test boundaries are agreed in advance.
The recovered protocol can then be used for integration, migration or development of a compatible replacement module.
Traffic capture
Frame structure recovery
Command/response mapping
Timing analysis
Error behavior
Implementation support
Questions that are useful to settle before the initial estimate.
Yes. RS-485 is the physical layer; the application protocol can often be reconstructed from traffic and controlled experiments.
Not always. A working system that generates representative traffic is usually the most useful starting point.
Yes. Firmware or gateway implementation can be a separate follow-on stage.
Yes, including arbitration IDs, payload patterns and higher-level behavior where enough operating scenarios are available.
The completeness depends on how many device states and scenarios can be exercised. We document the observed coverage and remaining unknowns.
Send the interface type, device models, available traces or access to the equipment, and describe what integration or replacement goal you need to achieve.
