Agilent Technologies 87130A The output queue must be read before the next program message is sent

Remote Operation

Programming Syntax

Query commands are also used to get results of switch status made by the switch driver, with the query actually activating the switch.

Example ROUTe:CLOSE? <channel spec>

instructs the driver to sense the status of the switch and place the result in the output queue.

The output queue must be read before the next program message is sent.

Example When the query

ROUTE:VERIFY:ON?

is sent, that query must be followed with a program statement like,

ENTER 709;Verify$

to read the result of the query and place the result in a BASIC variable (Verify$).

Sending another command before reading the result of the query will cause the output buffer to be cleared and the current response to be lost. This will also generate an error in the error queue.

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