# scenario: LV query on an MC-500SCCM-D
# Captured 2026-04-17 from /dev/ttyUSB0 (Prolific PL2303, 19200 baud,
# unit_id=A, firmware 10v20.0-R24).
#
# Real shape: `<uid> <stat_code>` — 2 fields, no label.
# Synthetic prior fixture's 3-field shape (with label) was wrong;
# the facade must look up the human-readable name from Statistic registry.
# See design §16.6.

# Query — loop tracks mass flow setpoint (statistic code 37).
> ALV
< A 37

# Set form (set+verify echoes the same 2-field reply with the new code).
> ALV 36
< A 36
