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Getting Started
1-19
Optional command words
In order to be in conformance with the IEEE-488.2 standard, the Model 6487 accepts
optional command words. Any command word that is enclosed in brackets ([]) is optional
and does not have to be included in the program message. Programming examples in this
manual use the short form and do not include optional command words for simplicity.
Query commands
Most command words have a query form. A query command is identified by the question
mark (?) that follows the command word. A query command requests (queries) the pro-
grammed status of that command. When a query command is sent and Model 6487 is
addressed to talk, the response message is sent to the computer.
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