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Command Descriptions
VX4380 256-Crosspoint Relay Matrix Module User Manual
3–39
Trigger events are not recognized until triggers are armed by a INITiate[:IM-
Mediate] or INITiate:CONTinuous command.
When the first trigger event is detected, the first relay in the scan list is closed.
When the second trigger event is detected, the first relay is opened and the
second relay is closed. When the nth trigger event is detected, the (n–1)th relay is
opened and the nth relay is closed. The act of opening the (n–1)th relay and
closing the nth relay is called sequencing the scan list. At any given time after
the first trigger event is detected, only one relay in the scan list is closed.
The TRIGger[:SEQuence]:COUNt command may optionally be used to specify
the number of times to sequence through the entire scan list. The TRIGger[:SE-
Quence]:DELay, [ROUTe:]CLOSe:DWELl, and [ROUTe:]OPEN:DWELl
commands may optionally be used to specify the time to wait after a trigger
event is detected, a relay is closed or a relay is opened. A TRIGger[:SE-
Quence]:IMMediate command causes the scan list to be sequenced without the
delay specified by a previously issued TRIGger[:SEQuence]:DELay command.
In these examples the Option 01 is installed on a VX4350 Module. A VX4380
and VX4380 are installed in consecutive slots to the right of the slot containing
the VX4350.
Command Response
route:module:define
gp,1
Assign module name “gp” to the VX4350.
route:module:define
matrix,2
Assign module name “matrix” to the VX4380.
route:module:define
scan,3
Assign module name “scan” to the VX4380.
route:scan (@gp(1:64),
matrix(1!1!1,2!10!3),
scan(1!1:20!1))
Define a scan list consisting of relays 1 through 64 on the
VX4350, relays at row 1, column 1 of section 1 and row 2,
column 10 of section 3 of the VX4380 and relays 1 through 20
of section 1 of the VX4380.
trigger:sequence:
source immediate
Define a trigger source of “immediate”. This means to
sequence through the scan list without waiting for a trigger
event.
trigger:sequence:count
5
Sequence through the entire scan list 5 times.
route:close:dwell
gp,.5
Wait 0.5 seconds after closing a relay on the VX4350.
initiate:immediate Begin sequencing through the scan list.
*OPC Set the Operation Complete bit of the Standard Event Status
register after sequencing through the scan list five times.
Examples