User`s guide

157

Chapter 4 Features and Functions

Digital Output Operations

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

output ports which you can use for outputting digital patterns.

• The digital output channels are numbered “s01” (lower byte) and

“s02” (upper byte), where s represents the slot number.

• You cannot configure a port for output operations if that port is

already configured to be part of the scan list (digital input).

• From the front panel, you can write to one 8-bit output port at a time.

From the remote interface, you can write to both ports

simultaneously.

• From the front-panel only, 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.

• 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: A from the front panel resets only the port currently

selected (both ports are not reset).

• Front-Panel Operation: After selecting the output port, press to

edit the bit pattern or decimal value (the least significant bit is on the

right). Press

again to output the bit pattern. To cancel an output

operation in progress, wait for the display to time out.

From the front-panel only, you can specify whether you want to use

binary or decimal format.

USE DECIMAL , USE BINARY

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