King-Meter N5236 User Manual page 22

Communicati
Display on
with
controller
Communicati
on
with
intelligent
module
Shutdown
failure
Shutdown
failure
19
0x30 Communicati
on failure
between
display and
controller.
Other
communicati
on faults
should be
detected by
BESST tools
0x39 The display
cannot
detect the
heartbeat of
the
intelligent
module, and
the controller
cannot
detect the
heartbeat of
the
intelligent
module,
shutdown