Advanced Features
Arm, trigger, sync and ramp
Output on
While this operating mode is selected, a trigger supplied to the Power Module will cause
its output to be turned on. If the output of the Power Module was already turned on then it
will remain on.
To select this operating mode, send the following command:
TRIG <ch>,4
Output off
While this operating mode is selected, a trigger supplied to the Power Module will cause
its output to be turned off. If the output of the Power Module was already turned off then
it will remain off.
To select this operating mode, send the following command:
TRIG <ch>,5
Un-arm
In this operating mode a trigger supplied to the Power Module will cause it to be un-
armed and any value stored while it was armed will be discarded. Use this mode to un-
arm a Power Module when you do not want it to use the values stored while it was armed.
To select this operating mode, send the following command:
TRIG <ch>,7
No-operation
In this operating mode a trigger supplied to the Power Module is ignored. Use this mode
when you do not want a Power Module to react to a trigger.
To select this operating mode, send the following command:
TRIG <ch>,6
Voltage ramp
In this operating mode the received trigger instructs the Power Modules to ramp its output
voltage. See the Output Ramping section below for further details.
To select this operating mode, send the following command:
TRIG <ch>,2
Current ramp
In this operating mode the received trigger instructs the Power Modules to ramp its output
current. See the Output Ramping section bellow for further details.
To select this operating mode, send the following command:
TRIG <ch>,3
The SYNC
output
Each of the XMP’s Power Modules can generate a hardware signal (SYNC) when certain
internal events occur. The SYNC signals from all the Power Modules housed in the
mainframe are summed (OR’ed) to produce the SYNC output pulse available at the
XMP’s back panel.
The SYNC output is a digital signal with TTL levels. Its normal state is ‘1’ and the pulse
changes its level to ‘0’ for a period of 0.5mS.
A Power Module can generate a SYNC when one of the following occurs:
XMP 2600 Programming Manual
rev. 1.1
27