Metrohm 788 IC Filtration Sample Processor User Manual

Page 69

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4.1 Fundamentals of operation

788 IC Filtration Sample Processor

61

Key

Normal state

Edit mode

2

CTRL

Interface control
x Controlling of external instruments

via the remote and RS232 interface.

This function is used for data com-

munication with or control of con-

nected instruments.

x The first parameter stands for the

selection of the interface. The

second parameter defines the state

of the remote output lines or data to

be transmitted via RS232 interface.

Parameters for remote interface
x Bit pattern with 14 digits (

0

,

1

or

*

)

for the 14 output lines or predefined

patterns accessible by the

<SELECT> key (

'INIT 732'

,

'FILL

A 1'

, etc.).

Parameters for RS232 interface
x Character string with up to 14

alphanumerical characters. Default

value:

'&D.S"9"'

, may be set with

<CLEAR>. Most Metrohm instru-

ments can be controlled with such

remote control commands, see

section 5.2.

Numerical entry ('2')
or
Interface control
x Setting the 14 signal lines of the

remote interface or sending a

character string via the RS232

interface to control instruments

connected.

x Predefined bit patterns are

available for the remote interface

and can be selected via simple

short-names (e.g.

'INIT 732'

or

'FILL A 1'

).

x Character strings consisting of 14

ASCII characters may be defined

with the RS232 interface.

3

WAIT

Numerical entry ('3')

or
Define waiting time
x Waiting for a certain time interval to

elapse in a sequence.

0

DEF

Numerical entry ('0')

.

<

PRINT

Print report
x The <PRINT> key serves for the

manual printout of reports.

x The choice of printer type and the

parameters of the RS232 interface

must be done in the Configuration

menu under

'>RS232 settings'

.

Numerical entry ('.')

Text entry
x In a menu or sequence line in which

entry of text is required, (e.g.

method name), text edit mode is

activated with "<".

x Existing text is deleted in this event

and the text cursor is set on the left

margin of the text field.

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