Metrohm 709 IC Pump - Manual (Page 48)

5 Interfaces
709 IC Pump
40
5.1.4 Status messages
To ensure appropriate control of an external control unit is possible, it
must also be possible to request status conditions which provide infor-
mation on the status of the 709 IC Pump. The output of a status mes-
sage is triggered by the trigger '$D' . Status messages consist of the
global status, the detailed status and eventual error messages, e.g.
' $S.P.S;E32 '. The global status informs on the activity of the process,
while the detailed status conditions show the exact activity within the
process.
The following global status conditions are possible:
$G Go The pump is running.
$R Ready The pump is ready.
$S Stop The pump has been stopped by "unnatural means".
Detailed status conditions
Status conditions of the global $G:
$G.P.S The pump has been started with normal start.
Status conditions of the global $R:
$R.P.S The pump is ready, inactive.
Status conditions of the global $S:
The instrument gives the status from which it has been
stopped, e.g. $S.P.S;E32;