User`s manual

107
Chapter 5 Remote Interface Reference
3488 Mode Commands
4
5
CPAIR <slot>,<slot>
Pairs two of the same (type) plug-in modules (i.e. two N2261A modules).
This operation will effectively assign both modules to both slot numbers
so that closing/opening/scanning a channel on either one module will
perform the same operation on the respective channel on the other
module.
The slot parameter is a decimal ranging from 0 to 9 (mainframe
dependent). Valid slot numbers are:
This feature is especially useful when doing 4-wire scanning with the
MUX modules, such as 44470A/D, N2260A, etc.
Commands used with the CPAIR function are: CLOSE, OPEN, CRESET,
CHAN, STEP, DWRITE and DREAD. Channels/bits on the paired slots can be
included in a scan list.
Executing a CPAIR command cancels any previous CPAIR command that
involved either of the two modules. It is possible, however, to have two
sets of card pairs, e.g. Slot 1 paired with 2 and Slot 3 paired with 4.
Paired DIO Modules: Two of the same (type) DIO modules used in
Mode #1 or #2 can be paired. You cannot pair DIO modules using other
handshake modes (see page 86).
Executing the CPAIR command without specifying slot numbers allows
you to determine which, if any, slots are paired together. Four numbers
are returned separated by commas. The first two numbers specify slots
in the first pair, the second two numbers specify the second pair. An
inactive card pair is denoted by 0,0.
OUTPUT 709; “CPAIR 1,3”
! Pair the modules in Slot 1
and Slot 3.
OUTPUT 709; “CLOSE 105”
! Close Channels 105 and 305
simultaneously.
3499A slots 0 through 5
3499B slots 0 through 2
3499C slots 0 through 9