‘lTL Out Menu ::;.., .i...z I..// I. ;:<<. .)(((.~y:

me cw$ “” “’ ““”

;...:Y.fz:,.; ..,......... JiTJT: softkey provides access to the ‘ITL out menu. This menu allows you to choose

between the following output parameters of the ‘ITL output signal:

The TTL output signals are sent to the sequencing BNC rear panel output.

Sequencing Special Functions Menu

,.,.... _. il..,.,.,,_,i_i .,..l..,__ _._ _ _ _..... ,.. _ _

'I'h&menu isaccessedbypressingthe ~~~~.~~~~~~~,,..softkeyinthe Sequencingmenu.

Sequence Decision Making Menu

This menu is accessed by presshg the ~~~~~~~~,~~~~ softkey in the Sequencing Sped&

Functions menu.

Decision making functions are explained in more detail below. These functions check a condition and jump to a specified sequence if the condition is true. The sequence called must be in memory. A sequence call is a one-way jump. A sequence can jump to itself, or to any of the other five sequences currently in memory. Use of these features is explained under the specific softkey descriptions

Decision Making Functions

Decision makiug fimctions jump to a softkey location, not to a specmc sequence title

Limit test, loop counter, and do sequence commands jump to any sequence residing in the specilled sequence position (1 through 6). These commands do not jump to a specific sequence title. Whatever sequence is in the selected softkey position, will run when these commands are executed.

Having a sequence jump to itself

A decision making command can jump to the sequence it is in. When this occurs, the sequence starts over and all commands in the sequence are repeated. This is used a great deal in conjunction with loop counter commands. See the loop counter description below.

Tl’L input decision making

TTL input from a peripheral connected to the parallel port (in the GPIO mode) can be used in a decision making function. Refer to “The GPIO Mode” earlier in this section.

Limit test decision making

A sequence can jump to another sequence or start over depending on the result of a lhnit

.._ ;.,:: ~ ,:::,:.,:,:,;,:,::- (,.::... ~~

,.,.,.,.,.,.,.,.,.,.,.,.,.,,, i_

.,., _ ..,.,.,_ _ *

test. men enteredinto asequence,the ~~~~~~~~~~and ~~~~H~~~~~~~~~:

,........................~~

-...-

-i.ii....A

................A............A.....~7.~.~.~.~.~.~

commands require you to enter the destination sequence.

6-160 Applioation and Operation Conwpts

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Image 431
HP 8753E Sequencing Special Functions Menu, Sequence Decision Making Menu, Decision Making Functions, ~ ,,.,,,,,- ,.... ~~