Arbitrary - Hameg HM8143 Handbuch

R e m o t e c o n t r o l
TRI
Format: TRI:A.mAmAmA
TRI:A.mAmAmA
Function: Sets current 1 and current 2 to the indicated value
(LIMIT values in TRACKING mode). The values must
follow the BCD format.
©
Examples: TRI:1.000
©
TRI:0.123
STA
Format: STA
STA?
Reply: OP1/0 CV1/CC1 CV2/CC2 RM0/1
Function: This command causes the HM8143 to send a text-st-
ring containing information of the actual status.
OP0 The outputs are switched off.
OP1 The outputs are switched on.
CV1 Source 1: constant voltage operation
CC1 Source 1: constant current operation
CV2 Source 2: constant voltage operation
CC2 Source 2: constant current operation
RMI Device in remote control mode
RM0 Device not in remotecontrol mode
Example: If the outputs are on, the HM8143 answers for
example with the following string (channel I is in
constant voltage mode and channel II is in constant
current mode:
OP1 CV1 CC2 RM1
If the outputs are off, the answer string contains
instead of the status of channels I and II two times
three dashes (––– –––).
OP0 ––– ––– RM1
OP1 + OP0
Format: OP1
Function: The outputs are switched on.
Format: OP0
Function: The outputs are switched off.
SF + CF
Format: SF
Funktion: Activation of the electronic fuse.
(Set fuse)
Format: CF
Funktion: De-activation of the electronic fuse.
(Clear fuse)
Clear
Format: CLR
Function: This command interrupts all functions of the
HM8143. The outputs are switched off, the voltages
and currents are set to 0.
VER
Format: VER
Reply: x.xx
Function: Displays the software version of HM8143.
Example: 1.15
ID?
Format: ID?
*IDN?
Reply: HAMEG Instruments, HM8143,x.xx
Function: HAMEG device identifi cation
Example: HAMEG Instruments, HM8143,1.15
30
Subject to change without notice
I1 = I2 = 1.000 A
I1 = I2 = 0.123 A

Arbitrary

The arbitrary waveform mode can be used for generation of
virtually any desired waveforms. For this purpose, a table com-
prising up to 1024 voltage and time values can be defi ned. This
table is stored in nonvolatile memory with a backup battery,
and is not lost for several days when the instrument is powered
down. The following commands are available for operating and
programming this function by interface:
ABT Transfer of arbitrary values
RUN Start waveform generation
STP Stop waveform generation
Attention: The arbitrary waveform mode only
effects the left channel of the power supply; rapid
waveform generation is possible with this channel
only.
STOP
The arbitrary mode can be terminated by 3 different means:
– By pressing the OUTPUT key (only in mixed-mode)
– By means of the command STP
– By means of the command OP0
While a waveform is being generated, the front panel controls
are disabled, except in mixed mode. The arbitrary mode can be
terminated by pressing the OUTPUT button
but the arbitrary-signal proceeds internal. This also has the
effect of switching off the outputs. Pressing this button again
switches the outputs of the power supply on.
The waveform generation starts either after the receiption of
the command RUN or if the signal at the BNC-socket (TRIGGER
IN/OUT ) changes from HIGH to LOW.
If the arbitrary-function is started by an external
trigger signal, only one signal period will be gene-
rated.
STOP
Display of channel I in arbitrary mode
During arbitrary mode the right display
values of channel II, if the outputs are activated or the nominal
values are displayed of the outputs are offf.
The display of channel II shows 8 dashes. After the arbitrary
function has fi nished, the arbitrary mode is left automatically and
the left display shows the values set. A re-start of the arbitrary
function begins whith the fi rst value.
While the arbitrary function is running, the current limit set
cannot be changed. The current in either direction cannot ex-
ceed the programmed value. In order to prevent jitter of the
waveform, no data should be transferred via the interface while
the function is running.
Exception: the terminating command STP and the commands
OP1 and OP0.
in mixed mode,
shows the actual