NI SCXI-1127/1128

The NI SCXI-1127/1128 modules have three possible legacy suffixes: SCANNER, MATRIX, INDEP.

SCXIx::x::SCANNER

When programming, the general form for the resource name is as follows:

SCXIn::m1,m2,m3::SCANNER

where

n = chassis ID

m1,m2,m3 = module slot number(s)

For example, to create a scanner out of three NI SCXI-1127/1128 modules in Slots 5, 6, and 8 of chassis 2, the resource name would be as follows:

SCXI2::5,6,8::SCANNER

For just one NI SCXI-1127/1128, in Slot 4 of chassis 1, the resource name would be as follows:

SCXI1::4::SCANNER

To make all of chassis 1 a scanner, a shortcut you can use is as follows:

SCXI1::SCANNER

Refer to the topologies of the NI SCXI-1127/1128 in Devices for valid channel names.

SCXIx::x::MATRIX

When programming, the general form for the resource name is as follows:

SCXIn::m::MATRIX

where

n = chassis ID

m = module slot number

For example, to create a matrix out of an NI SCXI-1127/1128 module that you have in Slot 12 in chassis 1, the resource name would be as follows:

SCXI1::12::MATRIX

In this version, a unique session must be created for each matrix module. The matrix configuration uses the route functions. When an NI SCXI-1127/1128 is configured as a matrix, it creates a 4×8 (4 rows by 8 columns) matrix.

Note  The NI SCXI-1127/1128, when configured as a matrix, must use the NI SCXI-1332 terminal block and must have the accessory field set appropriately in MAX; otherwise, an error will result during program execution.

Refer to the topologies of the NI SCXI-1127/1128 in Devices for valid channel names.

SCXIx::x::INDEP

The general form is as follows:

SCXIn::m::INDEP

where

n = chassis ID

m = module slot number

For example, to control a NI SCXI-1127/1128 that is in Slot 12 in chassis 1, the resource name would be as follows:

SCXI1::12::INDEP

A unique session must be created for each module. The independent configuration uses the low-level functions such as the niSwitch Relay Control VI or the niSwitch_RelayControl function. The switch names used in these low-level functions refer to physical switches on the module.

Refer to the NI SCXI-1127/1128 hardware diagram for valid relay names.