Agilent Technologies 34970A, User Manual, Page: 152 / 356

152
Chapter 4 Features and Functions
Digital Input Operations
• A Factory Reset (
*RST
command), Instrument Preset
(
SYSTem:PRESet
command), and Card Reset (
SYSTem:CPON
command) from the remote interface will reconfigure both ports as
input ports.
Note that a from the front panel resets only the port currently
selected (both ports are not reset).
• Front-Panel Operation : After selecting the port, press to read the
bit pattern (the least significant bit is on the right). The bit pattern
read from the port will be displayed until you press another key, turn
the knob, or until the display times out.
To add a digital read to a scan list, choose the following item.
DIO READ
From the front-panel only, you can specify whether you want to use
binary or decimal format.
USE DECIMAL , USE BINARY
• Remote Interface Operation : From the remote interface, you can read
an 8-bit byte from one port or a 16-bit word from both ports using the
following commands. If you are going to read both ports
simultaneously, you must send the command to port 01 and neither
port can be included in the scan list
SENS:DIG:DATA:BYTE? (@302)
Read port 02
SENS:DIG:DATA:WORD? (@301)
Read both ports together
To redefine the scan list to include a digital read (8-bit read only),
send the following command.
CONF:DIG:BYTE (@302)
Add port 02 read to scan list
34970A Refresh UG.book Page 152 Wednesday, February 17, 2010 12:34 PM