User manual

2400 Series SourceMeter
®
User’s Manual Digital I/O Port, Output Enable, & Output Configuration 13-5
Front panel digital output control
Set digital output line logic levels from the front panel as follows:
1. Press the MENU key.
2. Select GENERAL, then press ENTER.
3. Select DIGOUT, then press ENTER.
4. Using the RANGE and cursor keys, set the digital output parameter to the
desired decimal value (
Table 13-1). For example, to set the output lines to
L, H, H, H, set the digital output parameter value to 7.
5. Press EXIT to return to normal display.
Remote digital output control
Use the :SOURce2:TTL <NRf> command to control the digital output line logic
levels, where <NRf> is the decimal value shown in Table 13-1. For example, send
the following command to set the output lines to L, H, L, H:
:SOUR2:TTL 5
Table 13-1
Digital output line settings
OUT 4OUT 3OUT 2OUT 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, which is controlled by CONFIG LIMIT
menu.(See Section 12.) 0-65535 with 2499-DIGIO 16-bit
option.