Operating In Vxi Message-Based Mode; Channel Descriptors For The 1260-152/172 - Racal Instruments 1260 VXI Manual

1260-152/172 User Manual

Operating In VXI Message-Based Mode

Channel
Descriptors For
The 1260-152/172
Racal Instruments Ó2003
microseconds, not counting relay settling time or software
overhead inherent in I/O libraries such as VISA. To determine the
relay settling time, refer to Relay Settling Time in the
Specifications section.
Consult the 1260-01T User's Manual for a comparison of the
message-based and register-based modes of operation.
The standard 1260-01T commands are used to operate the 1260-
152/172 module. These commands are described in the 1260-01T
User's Manual.
Each 1260-01T relay 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 1260-152/172 module.
This is a number is in the range from 1 through 12, inclusive.
·
<channel range> is a list of channels to operate. Each channel
is a two-digit number. Thus, the valid channel numbers are:
0 through 16
When listing multiple channels, separate the
channels with a comma (,). To select a contiguous
range of channels, specify the first and last
channels, and separate them by a colon (:).
The following examples illustrate the use of the channel
descriptors for the 1260-152/172, with a module address of 8.
OPEN (@8(0))
OPEN (@8(10))
CLOSE (@8(9))
CLOSE (@8(11,13))
OPEN (@8(0:16))
Open channel 0.
Open channel 10.
Close channel 9 on the 1260-
152/172.
Close channels 11 and 13 on the
1260-152/172.
Open channels 0 through 16 (all
channels) on the 1260-152/172.
Module Operation 3-3