1260-145 User Manual
Module Operation 3-4
Racal Instruments
2003
comparisons, consult the 1260-01T User’s Manual for further
details.
Operating In Message-Based Mode
Channel
Descriptors For
The 1260-145
The standard 1260-01T commands are used to operate the 1260-
145 module. These commands are described in the 1260-01T
User’s Manual.
Each 1260-01T port command uses a
channel descriptor
to select
the channel(s) of interest. The syntax for a channel descriptor is
the same for all 1260 series modules. In general, the following
syntax is used to select a single channel:
@ <module address> ( <channel> ) )
Where:
•
<module address> is the address of the 1260-145 module.
This is a number is in the range from 1 through 12, inclusive.
•
<channel> is the 1260-145 relay to operate. This number can
be obtained for a given card and a given relay by referring to
Figure 3-3
and one of the applicable card types illustrated in
Figures 3-5
through
3-11
. These figures provide a message-
based channel descriptor (
MBC
) for each unique relay on any
1260-145 card.
Multiple individual channels may be specified using the following
channel descriptor syntax:
@ <module address> ( <channel1> , <channel2>
, . . ., <channelN> ))[,data]
A range of channels may be specified using the following channel
descriptor syntax:
@ <module address> ( <first channel> :
<last channel> ))
The following examples illustrate the use of the channel
descriptors for the 1260-145:
CLOSE (@8(0))
Closes relay 0 at module address
8
OPEN (@3(1000))
Opens relay 1000 at module
address 3
The message-based descriptors (
MBC
) provided in
Figures 3-5
Summary of Contents for 1260 VXI
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