Anonymized field profile A — MMS file-service transport
Vendor, model, installation and firmware are not published. The public evidence concerns protocol behavior, not product endorsement.
| Service | Status |
|---|---|
| MMS association | Observed |
| FileDirectory | Verified |
| File transfer | Conditional |
| Live model, reporting, GOOSE, control | Not tested |
Conditions
- Nested FileDirectory entries and rooted file paths were observed.
- FileOpen could return a signed Integer32 FRSM, including negative values.
- Large FileRead responses required segmented COTP reassembly.
- Transfer success does not prove record completeness or COMTRADE scaling.