Revision history

A

13-February-2025

Initial Gen4 command reference release

B

9-October-2025

Corrected typo in Quick start.

Corrected clock section to indicate when the clock can be changed.

Percent added as special character added in Parameter naming constraints.
all, erase and real critical parameter added to Parameter naming constraints.

id command behaviour corrected.
id4 command added.
instrument dump command typo in description corrected.
pcba command examples corrected.
download command examples corrected.
sensor command updated.
pause command added.
resume command added.
tmp - temperature examples added.
deri_seapres - derivation of sea pressure from absolute pressure examples updated.
deri_depth - derivation of depth from absolute pressure examples updated.
pss78 - derivation of practical salinity examples updated.
corr_pres2 - pressure with temperature correction examples updated.
deri_dyncorrT and deri_dyncorrS - derivation of practical salinity with dynamic correction examples updated.
deri_sos - derivation of speed of sound examples updated.
Information, warning, and error codes have been updated.

• ERR-441, and ERR-442 added

Deprecated the use of the derived parameter in the channel command.