I-1: a PUT/GET-disabled CPU (every read denied) stayed Faulted with
LastSuccessfulRead frozen, so the comms-loss watchdog reconnected and
re-subscribed it every 90 s forever. Both access-denied arms now also record
an answer: Faulted is kept (worst state wins), the stamp advances, and the
sticky write fault still clears only on a real success. Pinned end to end in
Runtime.Tests: the real S7Driver under the real DriverInstanceActor watchdog
is not reconnected across 2x the threshold; the control (every read timing
out) is.
Minors:
- m-1: injectable pass clock (UtcNow); "LastSuccessfulRead advanced" is now
asserted strictly, including the write-refusal case.
- m-2: the editor uses S7TagShapeRules.IsByteAnchored instead of its own list.
- m-3: a release that races an init publish also cancels the probe loop the
publish started after the release took its snapshot.
- m-4: a retained poll failing during a lifecycle operation writes no health.
- m-5: a multi-var chunk that fell back memoises its members refused alone.
- m-7: access-denied needs S7.Net's exact wording and no transport fault in
the chain.
- m-8: sync teardown clears the write-side Degraded owner; a sync Dispose
racing a running shutdown is tested.
Refs #742
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
A span's block is the union of its members' ranges, so one member that runs
past the DB's real end (or over-declares a STRING) made the CPU refuse the
whole block, and every neighbour within it was Bad on every poll. The
planner's stated invariant (a grouped read cannot fault where per-tag reads
would succeed) was false; the multi-var path already fell back, spans did not.
- A refused multi-member span hands its members back; they are read one at a
time for that pass, bypassing the multi-var pass.
- _noGroup remembers the members refused on their own (or every member when
none was) and keeps them out of later plans, so the rest group again. It is
cleared by every initialize publish. Non-refusal span failures are
unchanged (every member stamped).
- The once-per-tag refusal Warning memo (R07:H4) is now also cleared by the
publish, and shutdown resets the write-side Degraded owner, as documented.
- Live gate: MW10 + MD254 (2 bytes past the 256-byte M area) merged into one
refused block; MW10 keeps reading 4097 on every pass.
Refs #742
Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
Joseph Doherty