AMETEK PLA-PLW - Manual (Page 83)

t
Transient
Level
TRIGGER MODE
In trigger mode, the eLOAD waits for a trigger signal from the selected trigger source (HOLD (local), BUS, EXTERNAL
and ETHERNET) to switch to the user configured trigger level. The trigger level can be set to a value greater or less than
the main value. After each trigger level is reached, another trigger level can be set and re-triggered to the new trigger
level. The trigger operation mode is only available via remote operation. The trigger signal can be sent from any of the
trigger sources or via the front panel TRIGGER hot key.
Note: All the operating modes can be programmed via the front panel or using GPIB/RS232/ETHERNET/USB Interfaces
with the exception of TRIGGER operation, which is remotely controlled. In addition, each transient mode besides
CONTINUOUS can be triggered through a negative edge triggered external TTL compatible signal. CONTINUOUS
Transient Operation will start as soon as PULSE is activated, and can not be activated using a trigger signal.
Setting the Triggered Level:
1. Connect the eLOAD to a PC via any of the interfaces (GPIB/USB/Ethernet/RS-232)
2. Communicate with the instrument using e-Tool 1, and confirm connection by sending the command *IDN?
3. The returned parameter should indicate the eLOAD’s firmware revision number
4. Select the Transient Mode via “TR:MOD 0” command, which will set the eLOAD for Trigger operation
5. Select the Trigger Source via TRIG:SOUR and followed by one of the following selections EXT (external
trigger), BUS (Bus Trigger), ETH (Ethernet Trigger), and HOLD (Local Trigger). Please refer to the table 3.1
for further trigger source details.
6. Set the Trigger Delay to the desired amount of time via TRIG:DEL and time entry in ms.
7. Set the Triggered Level via CURR:TRIG (current), VOLT:TRIG (voltage), RES:TRIG (resistance) and
POW:TRIG (power) command, followed by the desired numerical value, such as 1 or 15.
8. Set the Main Level via CURR, VOLT, RES AND POW command, followed by the desired numerical value.
9. Turn the input on via the INP 1 command.
10. Trigger the eLOAD via Trig or *TRG.
Note: The “TRIG” command will trigger under all trigger sources with the exception of Ethernet (Ethernet Trigger
is reserved for the MCU-1 Controller), and the *TRG command will only work when the trigger source is selected to
“BUS.” Please refer to table 3.1 for the appropriate trigger commands for the various trigger sources.
Main
Level
Transient off
Trigger 1
Trigger 2
3-29