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Agilent 34970A/34972A Data Acquisition / Switch Unit

Agilent 34970A/34972A Data Acquisition / Switch Unit

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Chapter 3 Front-Panel Overview<br />

To Read a Digital Input Port<br />

To Read a Digital Input Port<br />

The multifunction module (34907A) has two non-isolated 8-bit input/<br />

output ports which you can use for reading digital patterns. You can read<br />

the live status of the bits on the port or you can configure a scan to<br />

include a digital read.<br />

1 Select the Digital Input port.<br />

Select the slot containing the multifunction module and continue turning<br />

the knob until DIN is displayed (channel 01 or 02).<br />

2 Read the specified port.<br />

You can specify whether you want to use binary or decimal format. Once<br />

you have selected the number base, it is used for all input or output<br />

operations on the same port. To change the number base, press the<br />

key and select USE BINARY or USE DECIMAL.<br />

.<br />

01010101 DIN Binary Display Shown<br />

The bit pattern read from the port will be displayed until you press<br />

another key, turn the knob, or until the display times out.<br />

Note: To add a digital input channel to a scan list, press<br />

the DIO READ choice.<br />

and select<br />

66

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