NIDAQ Digital Output Channel¶

Available on macOS

Description¶

Digital output channel on a NIDAQ Device.

Supports up to 32 lines on a single port. Each line has an associated parameter (e.g. line0) that specifies the variable from which to read the state of the line (0 or 1). Assigning a value to the variable causes the line’s state to be changed immediately.

Also supports multi-bit word output via the word and word_lines parameters.

Signature¶

iochannel/nidaq_digital_output

Required Parameters¶

port_number¶

Example: 0

Digital port number (0 for P0, 1 for P1, etc.)

num_lines_in_port¶

Example: 8

Number of lines in the port. Typical values are 4, 8, 16, and 32.

Optional Parameters¶

word¶

Variable from which to read multi-bit output words. Assigning a value to the variable causes the state of the lines specified in word_lines to be changed immediately.

word_lines¶

Examples: 1,2,3

4:7

1,4:6,7

Lines used to output the individual bits of multi-bit words. The first line receives the least significant bit, the last line the most significant.

Lines used for word output cannot also be controlled independently. Attempting to assign a value to the parameter associated with a line number included here will generate a warning.

line0¶

line1¶

line2¶

line3¶

line4¶

line5¶

line6¶

line7¶

line8¶

line9¶

line10¶

line11¶

line12¶

line13¶

line14¶

line15¶

line16¶

line17¶

line18¶

line19¶

line20¶

line21¶

line22¶

line23¶

line24¶

line25¶

line26¶

line27¶

line28¶

line29¶

line30¶

line31¶

Placement¶

Allowed at top level:	No
Allowed parent:	NIDAQ Device