4 learn mode, 5 trace function – Metrohm 788 IC Filtration Sample Processor User Manual

Page 87

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4.3 Methods

788 IC Filtration Sample Processor

79

4.3.4 LEARN

mode

HOLD

LEARN

When editing a method, the parameters of a command are most easily

determined experimentally, i.e. by manual execution, and it is for this

reason that certain commands are "teachable". The LEARN function

makes the manual execution of particular changer commands possible

during the editing of a sequence. The resulting parameters (for exam-

ple, the lift position or the status of the input lines) can be taken over in

the current command line. The LEARN function can be used repeti-

tively. When times or volumes are "learned", the repetitive values are

added up.

Procedure for creating a method

x Enter a command or select an existing command line.

x Press the <LEARN> key.

 Function is started, "LEARN" LED lights up.
 Press the <LEARN> key.
 Function is stopped, "LEARN" LED blinks.
 With the <ENTER> key, accept the value

(or re-start the LEARN function).

x "LEARN" LED goes out, edit next command line.

The LEARN function can be used with the following commands:

Command

Teachable parameter

Mode of function

LIFT

Lift position in mm

absolute

PUMP

Pump time in sec

additive

WAIT

Waiting time in sec

additive

SCN Rm

Status of the 8 remote lines

"live" value

SCN RS

Character sequence received

"live" value



4.3.5 TRACE

function

START

The "TRACE" function is a valuable aid for operating through an entire

sequence or method (or parts thereof) for test purposes. Every com-

mand line in a sequence can be executed directly by pressing the

<START> key. Upon completion of the action the next command line

is displayed.
Tracing can be executed immediately after entry of a sequence line or

at any time after opening the parameter menu and selecting a se-

quence.

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