DLS 50 - Status Reporting

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Remote Control

Page 21

must be terminated with a line feed character. Messages from the DLS 50 are always

terminated with a Line Feed character, and also with the EOI signal if using the IEEE

488 interface.

As defined in the SCPI specifications, a Device Dependent Command may be sent in its

short form or long form. The following commands are therefore identical in operation:

:SET:CHANNEL:LENGTH 9.0 kft

:SET:CHAN:LEN 9.0 kft

:SET:chan:LENGTH 9.0 kft

Queries of the system follow the same format as the commands, except that the data

normally associated with a command is replaced by a question mark "?". Following

receipt of such a command, the DLS 50 will place the appropriate response on the

output queue, where it can be read by the controller.

Examples are:

*IDN?

*ESE?;*SRE?

:SET:CHAN:LEN?

When a command does not begin with a colon, the DLS 50 assumes that the command

is at the same level as the previous command. For example, to set the serial interface,

one does need to specify `:SYStem:COMMunicate:SERial' each time, such as in:

:SYStem:COMMunicate:SERial:BAUD 9600;PACE CTS

FORMAT N81

This shorter form is valid because BAUD, PACE and FORMAT are at the same level.

4.5 Status Reporting

There are two registers that record and report the system status, the Status Byte