Keithley 2520, User Manual, Page: 237 / 329

14-48 SCPI Command Reference Model 2520 User’s Manual
Description
This command is used to set the logic levels of the output lines of the
Digital I/O port. When set high, the specified output line will be at
approxi5V. When set low, the output line will be at 0V.
Use the following table to determine the parameter value for the desired
decimal digital output pattern:
Setting bit size
BSIZe <n>
:SOURce4:BSIZe <NRf> Set Digital I/O bit size
Parameters
<NRf> = 4 Set 4-bit size
16 Set 16-bit size (2499-DIGIO option)
Query
:BSIZe? Query Digital I/O port bit size
Description
This command sets the Digital I/O bit size to 4 or 16. The 16-bit size is
available only with the 2499-DIGIO option connected to the Digital I/O
port.
NOTE
This command is not affected by *RST, :SYSTem:PRESet, or *RCL.
OUT 4 OUT 3 OUT 2 OUT 1
Decimal
value
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
L = Low (Gnd)
H = High (>+3V)