Data transmission via serial interface – Metrohm 838 Advanced Sample Processor Manual User Manual

Page 52

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2.4 Commands

44

Metrohm 838 Advanced Sample Processor, Operation

2

CTRL

>sample sequence

10 CTL:RS

Rm,RS

default value: M;$G

14 ASCII characters

Data transmission via serial in-

terface

= starts Metrohm instrument in current mode

any character string with 14 characters

Data (=character strings) can be transmitted to connected devices via

the serial RS232 interface.
Make sure that the transmission parameters of the RS232 interface are

identical with those of the connected device (see configuration menu

>RS232 settings

, p.23).

Any letters, numbers and special characters can be selected from the

character set of the Advanced Sample Processor.
This function is primarily suitable for instruments that understand the

Metrohm Remote language. These can be controlled with so-called

triggers.
The most important of these are:

&M;$G

Go, starts instrument in current mode

&M;$S

Stop, stops device

&M;$H

Hold, interrupts determination

&M;$C

Continue, restarts determination


Switching on the AutoInfo status messages (e.g. in a start sequence)

can be carried out with the following Remote commands:

&Se.A.T.R"ON"

Status message at "Ready" condition

&Se.A.T.F"ON"

Status message at end of a determination

&Se.A.T.S"ON"

Status message at manual Stop

&Se.A.T.G"ON"

Status message at start of a method

&Se.A.T.E"ON"

Status message at error condition


Logically the corresponding AutoInfo messages should be switched

off again in a final sequence (

..."OFF"

).

Detailed information about the syntax of the Remote language can be

found in the Instructions for Use of your Metrohm instrument.
For communication with instruments from other manufacturers or a

computer please conform with their syntax and conventions.

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