Metrohm 788 IC Filtration Sample Processor User Manual

Page 91

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4.3 Methods

788 IC Filtration Sample Processor

83

More detailed information about the syntax can be found in the Instruc-

tions for Use of the instrument from which the status messages should

be transmitted.
With the LEARN function transmitted data (= character strings) can be

taken over interactively (see section 4.3.4).

CTL

2

CTRL

>sample sequence
7 CTL:Rm: INIT

Rm,RS INIT

INIT

732

PROG R/S 1

PROG R/S 2

PUMP R/S 1

FILL A 1

INJECT A 1

FILL B/STEP 1

INJECT B 1

ZERO

1

PUMP

752

ON

PUMP

752

OFF

STEP

MSM

753

******0*001***
******0*010***
******1*000***
******0*101***

******1*010***
******0*011***
*******1******

*******0******

14 bit (1,0 or *)

Setting the remote lines

= initialize remote lines of 788
= initialize remote lines of 732/1 and 732/2
= run/stop time program at 732/1
= run/stop time program at 732/2
= run/stop IC Pump 709/1
= switch valve A at 733/1 to "Fill"
= switch valve A at 733/1 to "Inject"
= switch valve B at 733/1 to "Fill" or switch

suppressor to next position

= switch valve B at 733/1 to "Inject"
= trigger the autozero function at 732/1
= switch on pump at 752/753
= switch off pump at 752/753
= switch suppressor at 753 to next position
= run/stop IC Pump 709/2
= switch valve A at 733/2 to "Fill"
= switch valve A at 733/2 to "Inject"
= switch valve B at 733/2 to "Fill" or switch

suppressor to next position

= switch valve B at 733/2 to "Inject"
= trigger the autozero function at 732/2
= switch on pump at 754
(with 6.2143.220 cable)
= switch off pump at 754
(with 6.2143.220 cable)

arbitrary 14 bit pattern

The

CTL:Rm

command controls external instruments via the remote inter-

face. It causes the setting of defined line states or the sending of pulses

via the 14 remote output lines.
Predefined bit patterns are supported which can be selected by short

names (e.g.

'INIT 732'

or

'ZERO 1'

).

Setting particular bit patterns allows flexible control of connected in-

struments.
Here the following is valid:

0

= line inactive

1

= line active

= do not change line state

Example:

***000*******1

= Output line 0 active

= start/stop time program at 732/1

For details about the remote interface, see section 5.1.

2

CTRL

>sample sequence
8 CTL:RS

Rm,RS

Clear value: &D.S"9"

14 ASCII characters

Data communication via

serial RS232 interface

= start/stop time program at 732
arbitrary string of 14 characters

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