Front-Panel Overview 3
Keysight 34970A/34972A Service Guide 59
To Read a Digital Input Port
The multifunction module (34907A) has two non-isolated 8-bit input/output ports
which you can use for reading digital patterns. You can read the live status of the
bits on the port or you can configure a scan to include a digital read.
1 Select the Digital Input port.
Select the slot containing the multifunction module and continue turning the
knob until DIN is displayed (channel 01 or 02).
2 Read the specified port.
You can specify whether you want to use binary or decimal format. Once you
have selected the number base, it is used for all input or output operations on
the same port. To change the number base, press the key and select USE
BINARY or USE DECIMAL.
The bit pattern read from the port will be displayed until you press another key,
turn the knob, or until the display times out.
01010101 DIN
Binary Display Shown
To add a digital input channel to a scan list, press and select the DIO READ
choice.
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