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Auto: s7-c1 — surface negotiated PDU size via DriverHealth.Diagnostics

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Closes #294
This commit is contained in:
Joseph Doherty
2026-04-26 00:35:49 -04:00
parent f469cf7e0d
commit 6540bbe1ef
6 changed files with 165 additions and 1 deletions
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4
docs/drivers/S7-Test-Fixture.md
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@@ -44,6 +44,10 @@ The driver ctor change that made this possible:
bool-with-bit in one batch call; proves typed decode per S7DataType
- `S7_1500SmokeTests.Driver_write_then_read_round_trip_on_scratch_word` —
`DB1.DBW100` write → read-back; proves write path + buffer visibility
- `S7_1500DiagnosticsTests.Driver_exposes_negotiated_pdu_size_post_init` —
asserts `DriverHealth.Diagnostics["S7.NegotiatedPduSize"]` is non-zero
after `InitializeAsync`; proves the negotiated PDU size surfaces in
driver health (Snap7 fixture pins this at 240 bytes — see fixture README)
### Unit