3 trigger – Metrohm 788 IC Filtration Sample Processor User Manual
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5.2 RS232 interface
788 IC Filtration Sample Processor
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5.2.3 Trigger
Triggers initiate an action at the 788 IC Filtration Sample Processor ,
e.g. sequence start or data transmission. Triggers are marked by the in-
troducer
'$'
.
The following triggers are possible:
$G
Go
Starts processes, e.g. starting the mode run or set-
ting the RS232 interface parameters
$S
Stop Stops
processes
$Q
Query
Used to request all information from the current
node in the tree forwards up to and including the
values
$Q.P
Path
Used to request the path from the root of the tree
up to the current node
$Q.H
Highest
Index
Used to request the number of daughter nodes of
the current node
$Q.N"i"
Name
Used to request the name of the daughter node
with index i, i = 1...n
$D
Detail-Info
Used to request detailed status information
$U
qUit
Used to terminate the data flow of the instrument,
e.g. after $Q
The triggers
'$G'
and
'$S'
are linked to particular objects, see Over-
view table in section 5.2.6.
All other triggers can always be used at all locations in the data tree.
Examples:
Request of the baud rate value:
&Config.RSset.Baud $Q
Request of all values of the node
'RSset'
:
&Config.RSset $Q
Request of the path of the node
'RSset'
:
&Config.RSset $Q.P
Start mode:
&Mode $G
Request of the detailed status:
$D