Triggers; Status And Error Messages - Metrohm 774 Oven Sample Processor Manual De Instrucciones

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5.9.3 Triggers

$G Go
$S Stop
$Q Query
$Q.P Path
$Q.H Highest
Index
$Q.N"i" Name
$D Detail-Info
$U qUit

5.9.4 Status and Error Messages

In order to have an efficient control by an external control device, it must also be possible to query
status conditions. They provide information about the status of the instrument. The trigger $D initi-
ates output of the status. Status messages consist of the global status, the detailed status and
eventual error messages. The global status informs on the activity of the process, while the de-
tailed status conditions show the exact activity within the process.
$G Go
$H Hold
$C Continue
$R Ready
$S Stop
100
Triggers initiate an action on the 730 Sample Changer, for example, starting
a process or sending data. Triggers are marked by the introductory symbol
$.
The following triggers are possible:
Starts processes, e.g. starting the mode run or setting the RS232 interface
parameters
Stops processes
Queries all information from the current node in the tree forward up to and
including the values
Queries the path from the root of the tree up to the current node
Queries the number of son nodes of the current node
Queries the name of the son node with index i, i = 1...n
Queries the detailed status information
Aborts the data flow of the instrument, for example, after $Q
The triggers $G and $S are linked to particular objects, see the summary
table page 104ff.
All other triggers can be used at any time and at all locations on the object
tree.
Examples:
Querying the value of the baud rate: &Config.RSSet.Baud $Q
Querying all values of the node: RSSet: &Config.RSSet $Q
Querying the path of the node: RSSet: &Config.RSSet $Q.P
Start mode: &Mode $G
Querying the detailed status: $D
The following global status conditions are possible:
The instrument is executing the last command.
The instrument has been held ($H, <HOLD> key or by an error which
effects the hold status).
The instrument has been restarted actively after hold.
The instrument has executed the last command and is ready.
A process has been aborted, e.g. by pressing the <STOP> key or
because there was an error.
774 Oven Sample Processor, Instrucciones para el uso