Keithley 6485 Instruction Manual page 240

D-8 DDC Emulation Commands
Table D-1 (continued)
Device dependent command summary
Mode Command
U0
Status
Word
U1
U2
Digital V
Calibration
X
Execute
Y(ASCII)
Y0
Y1
Terminator
Y2
Y3
Y4
Z0
Baseline
Suppres-
Z1
sion
(Rel)
Description
Equivalent SCPI commands
Return status word. See
must be queried individually. For example:
SENSe[1]:CURRent:RANGe?
Send data conditions. See
Buffer size and readings stored. See
Calibration commands (V+n.nnnnE+nn) not supported G
Execute other device-dependent commands. SCPI not
applicable (SCPI commands execute as they are
received)
Not Available
LFCR (line feed, carriage return)
CRLF (carriage return, line feed)
LF (line feed)
CR (carriage return)
None
Suppression (Rel) disabled
CALCulate2:NULL:STATe OFF
Suppression (Rel) enabled
CALCulate2:NULL:ACQuire
CALCulate2:NULL:STATe ON
A. The buffer size command (In) is not used by the Model 485. The buffer size com-
mand is similar to the SCPI TRACe:POINts command (see
B. The moving filter cannot be selected from the DDC language.
C. For Model 6485, the terminator commands (Y) to set the terminator are different
from the Y commands used by the 485. Also note that the "YY" response to the U0
command is different.
D. For the Model 6485, the Buffer Full bit in the U1X status word does not get cleared
until either the buffer is resized or buffer storage is reactivated. Note that requesting
a buffer reading does not clear the U1 Buffer Full bit.
E. The U2 status command is not used by the Model 485. The response message indi-
cates the buffer size (In) and the actual number of readings stored in the buffer.
F. Calibration must be already unlocked and enabled.
G. See CALibration subsystem.
Model 6485 Picoammeter Instruction Manual
Figure D-1. Each parameter
Figure D-2.
Figure D-3.
Note Default
NEW
D, NEW
C, NDS
C, NDS
C, NDS X
C, NDS
C, NDS
C, NDS
Section 6 for details).