glenn schrooyenandClaude
21d8a944bc
maint_start and maint_abort take an optional unit. With two or more batteries each Batteries card has Start cycle and Stop cycle buttons. One slot per site stays: a start while a battery cycles is refused and names it (no queue). A battery that is switched off, an unknown unit, and a stop on a battery that is not cycling are refused with a plain message. A request with no unit is the old call. The scheduler and the phase machine are unchanged. Co-Authored-By: Claude <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Bdqr7PiaHcBnzPituu2yTC
35 lines
1.6 KiB
Markdown
35 lines
1.6 KiB
Markdown
# MAINT-11 - start or stop the maintenance cycle per battery
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**Status: for review.** Tests: `test_maint11.py`. No option added.
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**The fault.** At two or more batteries the page had one "start a battery cycle"
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button, and `_maint_button()` chose the battery. An operator could not cycle a
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chosen one (inverter B, new after storage, needed its first cycle).
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## Rule
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1. `maint_start` and `maint_abort` take an optional `unit`. With no unit they
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run the old code unchanged. The Batteries screen sends the unit from a
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per-battery Start cycle and Stop cycle button, at two or more batteries only.
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2. **A start while any battery holds the maintenance slot is refused, not
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queued.** The message names the battery that is cycling. One slot per site
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stays the rule, and the scheduler is untouched.
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3. Also refused, with a plain message: an unknown unit, a start on a battery
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that is switched off (battery modes on), and a stop on a battery that is not
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cycling. Nothing changes on a refusal.
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4. A stop on the cycling battery is today's abort: the cycle ends, then every
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inverter goes to 0 W.
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## Why refuse and not queue
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A queued start is a cycle that begins hours later, unseen, after the operator
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has moved on. A refusal is immediate and says why. The scheduler already
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queues by waiting time, so nothing is lost.
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## What this does not cover
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- Today's bare button never refused a battery that is refusing to give power
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(SAFETY-73); its drain waits. The per-battery start does the same.
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- A start on the battery that is already cycling is refused as "busy", where
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the bare button restarts its drain. The bare button is unchanged.
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