SCPI Command Reference 17-83
<NDN> #Bx Binary format:
3-bit: x = 000 to 111
4-bit: x = 0000 to 1111
#Hx Hexadecimal format:
3-bit: x = 0 to 7
4-bit: x = 0 to F
#Qx Octal format:
3-bit: x = 0 to 7
4-bit: x = 0 to 17
Query :TTL? Query digital output value
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 approximately
+5V. 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:
:ACTual?
:SOURce2:TTL[:LEVel]:ACTual? Query bit pattern on digital output port.
Description This query command is used to read the bit pattern that is actually on the
digital output port.
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)
*0-7 in 3-bit mode.