Agilent Technologies Multiple Channel Controller 85330A - Manual (Page 88)

6-14 85330A Multiple Channel Controller
Programming
To Use Run-Time Control Mode
Using More than One
Controller More than one multiple channel controller may be used in a system.
Multiple controllers are usually used when the distance to a switch control
unit exceeds the maximum length allowed. The REMOTE 1 and REMOTE 2
connectors on the rear panel allow connections to multiple controllers. See
Chapter 9, “Service” for more information on these connectors.
To set up and control the remote controller, use these commands:
•
RUNTime:CONTroller
•
RUNTime:TIMEout:REMote
•
RUNTime:SWITch:TRIGger
The remote controllers can be triggered using the commands:
•
RUNTime:SOURce:SOURCE1:TRIGger
•
RUNTime:SOURce:SOURCE2:TRIGger
Starting Run-Time
Mode Issue the RUNT:INIT:IMM command to initiate the run-time operation. This
command passes the hardware control to the 85330A and allows it to accept
and issue triggers.
OUTPUT 70918;"RUNT:INIT:IMM;”
Once the sequence is initiated the 85330A either:
•
Waits for an event trigger before issuing a trigger to the receiver,
OR:
•
Immediately issues a trigger to the receiver.
This is set using the RUNT:EVEN:TRIG command.
Run-Time
Measurement
Sequence Refer to Figure 6-2, “Run-Time Flow Chart with Programming Command
References,” on page 6-16 . The chart shows the sequence of a run-time
measurement. Programming commands applicable to each function are
shown. All programming commands must be executed before run-time is
initiated. Here is a description of the run-time measurement sequence:
Idle
This is the idle state of the 85330A. This also the state the unit enters if an
error occurs during run-time. Run-time mode is started when
RUNT:INIT:IMM is
executed.
Select Switch State
The first switch state is selected for Port 1 or Port 2, as defined with the
RUNT:SWIT:SCAN command. A delay now occurs to allow the switch to settle,
defined with RUNT:SWIT:DEL .