3 trigger – Metrohm 788 IC Filtration Sample Processor User Manual

Page 125

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5.2 RS232 interface

788 IC Filtration Sample Processor

117

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

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