Racal Instruments 1260-38T, User Manual

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1260-38T User Manual
Module Operation 3-4 Racal Instruments © 1998
Syntax
The Module Specific Syntax for the 1260-38T Multiplexer/Scanner
module is as follows:
<COMMAND> <relay designator> [;<relay designator>]
where:
<relay designator> ::= <module address>.<channel range>
[,<channel range>...]
<channel range> ::= <channel descriptor>[-<channel descriptor>]
<channel descriptor> ::= <interconnect><mux select><channel>
<module address> ::= 1.. 12
<interconnect> ::= 0 to 9
Where: 0 = multiplexer channels.
1 to 8 = multiplexer interconnect relays.
<mux select> ::= 00 to 15
For two-wire mode: selects one of 16 1 x 8 multiplexers.
For four-wire mode: selects two of 16 1 x 8 multiplexers.
Only even number multiplexers are allowed. Selecting
multiplexer 00 will also select same channel on next
multiplexer in sequence, in this case multiplexer 01.
<channel> ::= 0 to 7
0 to 7 for multiplexers
0 to 2 for interconnect relays
NOTE
The <module address> used here is not the VXIbus
defined Logical Address of the 1260 Series Master. It
is unique to the 1260 Series and describes the
switching module in relation to the Master. This
address corresponds to the binary value of the switch
setting of SW1 on the switching module PCB. Refer
to the Installation Section of the 1260 Series VXI
Switching Cards Manual for more information.