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SCPI Commands for the SurePatht Modules
3–284
VX4101A MultiPaq Instrument User Manual
After this sequence, each time the VXI TTL trigger 2 is pulsed low, the
following sequence of events occur:
1. One second delay. This is the delay specified in the trigger:Sequence:delay
command.
2. The current relay in the scan list is opened.
3. 0.5 second delay. This is the delay specified in the route:open:dwell
command.
4. Close the next relay in the scan list.
5. 0.25 second delay. This is the delay specified in the route:close:dwell
command.
6. Pulse VXI TTL trigger 1 low for 3 ns.
7. Wait 5 ms then pulse the front panel encode signals corresponding to the
section of the close relay. The encode signals are pulsed low for 4 ms.
[ROUTe:]PFAil <action_at_powerfail>
Command Response
route:pfail same Leave all latching relays in their current state at powerfail
route:pfail open Open all latching relays at powerfail
[ROUTe:]SCAN <channel_list>
A VX4380, VX4330, and VX4350 are installed in consecutive slots to the right
of the slot containing the VX4101A.
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 scanner,3 Assign module name “scanner” to the VX4380
route:configure twire,
scanner,(1:6)
Set the configuration of all sections of the VX4330 to 20-to-1
2-wire. This command causes all channels in all sections to be
opened
route:scan (@gp(1:64),
matrix(1!1!1, 2!10!3),
scanner(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 VX4330
trigger:sequence: source
immediate
Define a trigger source of “immediate”. This means to
sequence through the scan list without waiting for a trigger
event