Scanning the rs232 interface – Metrohm 838 Advanced Sample Processor Manual User Manual
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2.4 Commands
42
Metrohm 838 Advanced Sample Processor, Operation
1
SCAN
>Sample sequence
8 SCN:RS
Rm,RS
default value: ∗R"
14 ASCII characters
Scanning the RS232 interface
= scan "Ready" status message
any data string with 14 characters
In a sequence the SCN:RS command will halt the method sequence
until the predefined data string (up to 14 characters) has been received
via the serial RS232 interface. Incoming data is checked character by
character.
Make sure that the transmission parameters of the RS232 interface are
identical with those of the connected device (see configuration menu
>RS232 settings
Any letters, numbers and special characters can be selected from the
character set of the Sample Processor. '∗' can be set as wild card for
any character string. (If '∗' is to be interpreted as an ASCII character
then '∗∗' must be used.) A wild card can be set within a character string.
When the first part of the character string has been recognized correctly
then a search will be made for the first appearance of the character
standing after '∗'. In this case the comparison will be made with the
second part of the character string.
Details of the CTL command are given below.
With the LEARN function transmitted data (=character strings) can be