Switch Pxie Multi Chassis Mode Operation; Ni-Max Application Multi Chassis Mode; Scpi Multi Chassis Commands - Quantifi Photonics 1000 Series User Manual

Switch PXIe Multi Chassis mode operation

Multiple chassis can be connected to operate in Multi Chassis Mode. To operate in Multi Chassis Mode,
CohesionSCPI service must be version 1.02.06 or later.
9.6.1

NI-MAX application Multi Chassis mode

The CohesionSCPI service does not manage the chassis numbers. These are controlled by the
NI Platform Services (and through NI-MAX).
Even if the CohesionSCPI service is in Multi Chassis mode, if a chassis is connected but has no
installed modules, it will not show up when *OPT? is run.
In the example shown below, there are two chassis connected via the PXIe-8384 to PXIe-8381
connection. Chassis #2 has the controller running CohesionSCPI service, and Chassis #3 is the
'extended' chassis.
9.6.2

SCPI Multi Chassis commands

Command :SYSTEM:CHASSIS?
Syntax
:SYSTEM:CHASSIS?<wsp>[LIST|MODE]
Description Query the Chassis Mode configuration
Parameters No parameters
LIST:
MODE:
Response
None:
In Single chassis mode:
:SYSTEM:CHASSIS? -> 1
:SYSTEM:CHASSIS? LIST -> 0
:SYSTEM:CHASSIS? MODE -> SINGLE
Example
In Multi chassis mode:
:SYSTEM:CHASSIS? -> 2
:SYSTEM:CHASSIS? LIST -> 2,3
:SYSTEM:CHASSIS? MODE -> MULTI
Quantifi Photonics Ltd.
Automated Optical Switch | Switch 1000/1100/1400 Series
Returns a comma separated list of valid chassis index numbers discovered by
the CohesionSCPI service. These are chassis that have modules installed
Returns the current Chassis Mode the CohesionSCPI service is operating in
(SINGLE or MULTI)
Returns the number of chassis managed by the CohesionSCPI service. If
operating in SINGLE mode, this will always return 1
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