
64
Subject to change without notice
G e n e r a l
c o m m a n d s
General commands
(memory card commands excepted)
Initialization
CLR
Initialization of the HM8131-2. Stored arbitrary
functions will remain untouched.
RST
Same as before except that any stored arbitrary
functions will be erased and replaced by those
from the factory.
General commands
STA?
Reading the instrument confi guration
VER?
Reading the software version
SNR?
Reading the serial number
ID?
Reading the instrument ID (short version)
*IDN? Same,
long
version
TRG
Generation of a trigger pulse
STO:x
Store instrument status (0 .. 9)
RCL.x
Recall instrument status (0 .. 9)
Bus commands
LK0 Erase
“local
lockout“
LK1 Activate
“local
lockout“
RM0
Reset to manual operation
RM1
Set to remote control
OT0 Switch
off
output
OT1 Switch
on
output
RFX
Activate external reference frequency
RFI
Activate internal reference frequency
BPO Turn
off
beep
BPS
Turn on beep medium
BPL
Turn on beep loud
Signal function
SIN Sine
SQR Square
wave
TRI Trinagle
RMP Rising
ramp
RMN Falling
ramp
ARB4 Arbitrary
signal
4k
ARB16 Same
16k
PINK Pink
noise
NOISE White
noise
Signalparameter
FRQ? Read
frequency
FRQ.xxx Programming
a
frequency
DFR
Switch display to frequency
VPP
Voltage display in Vpp
VRMS
Voltage display in Vrms
AMP7 Read
actual
amplitude
AMP.xxx Programming
an
amplitude
DAM
Switch display to amplitude
OFS? Read
offset
OFS.xxx Programming
an
offset
DOF Display
offset
PHA? Read
phase
PHA.xxx
Programming of a phase
Typs of running modes
CTM
Continuous mode = free running
TRM Trigger
mode
TRM+
Triggering on positive slope
TRM–
Same on negative slope
GTM Gated
mode
GTM+
Gated mode on High level
GTM–
Same on Low level
TRP+
Triggering on High level
TRP–
Same on Low level
Sweepmode
SW0
Turn off sweep mode
SW1
Turn on sweep mode
LIN Linear
sweep
LOG Logarithmic
sweep
STT? Read
start
frequency
STP? Read
stop
frequency
SWT? Read
sweep
time
STT.xxx
Programming of start frequency
STP.xxx
Programming of stop frequency
SWT.xxx
Programming of sweep time
DST Display
start
frequency
DSP Display
stop
frequency
DSW Display
sweep
time
Types of modulation
AM0 No
amplitude
modulation
AM1 Internal
AM
AMX External
AM
AMT? Read
modulation
depth
AMI.xxx
Programming of modulation depth with internal
AM
AMX.xxx
Programming of modulation depth with external
AM
AMT.xxx Display
modulation
depth
FSK1 Activate
FSK
FSK0 Deactivate
FSK
FK0? Read
carrier
frequency
FK1? Read
hop
frequency
FK0.xxx
Programming of carrier frequency
FK1.xxx
Programming of hop frequency
PSK0 Deactivate
PSK
PSK1 Activate
PSK
PH0? Read
phase
0
PH1? Read
phase
1
PH0.xxx
Programming of phase 0
PH1.xxx
Programming of phase 1
Arbitrary mode
ARC4
Initialize 4 K word function, reset value and
address counter
ARC16
Initialize 16 K word function, reset value and
address counter
ARE
Stop loading procedure, calculate intermediate
values
ARP4.:.xxxx=yyyy
4 K word function: write point coordinates to X
and Y.
ARP16:xxxx=yyyy
16 K word function: write point coordinates to X
and Y
ARP4:yyyy=?
4 K word function: read Y coordinate
ARP16:yyyy=?
16 K word function: read Y coordinate
Instrument status
The command “STA?“ will cause the instrument to transmit the
following data via the interface:
OT1 RFI SW0 SIN AM0 SK0 CTM VPP
The data fi elds may contain the following data: