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Displaying the sequence steps through the output lines

(HP 54656A only)

Sometimes, it is convenient to display the step number in a remote unit

hosting the Next and Reset key. This can be achieved by a simple circuit

which uses the user-definable output lines.

Two output lines can be used to drive a simple circuit consisting of a counter

IC, LED driver, and a seven-segment LED. A sample circuit is shown in the

following figure.

Example circuit for displaying the sequence step number using the output lines

Output line 1 is used as a reset signal to the counter. Output line 2 is used to

drive the counter when a step is executed. The counter in turn drives the

LED driver and the sequence step number is displayed on the seven-segment

LED.

If additional output lines are available, they can be toggled on and off to drive

the decoder/LED driver directly without using a counter. A maximum of 32

combinations can be generated by the five output lines.

Figure 19

Solutions

Displaying the sequence steps through the output lines (HP 54656A only)

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 122 123

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Agilent Technologies HP 54601B Betriebsanweisung Seite 73