Agilent Technologies L4400 - Manual (Page 126)

114 L4400 User’s Guide
5 L4433A Dual/Quad 4x8 Reed Matrix
L4433A Example Program Segments
The following sections contain example program segments of commonly
used instrument functions. .
The channel addressing scheme used in these examples follow the general
form 1ccc where ccc is the three- digit channel number. The channel
numbers for the L4433A are derived as follows:
Two-wire mode: For two- wire mode, the channel numbers are derived
from the crosspoint or intersection of rows and columns, columns having
two digits. See the example below.
One-wire mode: For one- wire mode, the channel numbers are derived
from a specific matrix number and the crosspoint or intersection of rows
and columns on that matrix. See the example below.
For information on specific configurations, refer to the simplified
schematics for the L4433A later in this chapter.
For detailed example programs involving multiple drivers and
development environments, refer to the L4400 Product Reference
CD- ROM (p/n 34989- 13601).Setting 1- wire and 2- wire Modes
Example: Configuring the L4433A for 2-wire or 1-wire mode The following
command configures the L4433A for 1- wire measurements. If you are
using terminal blocks with the L4433A module, be sure to use the
corresponding 2- wire or 1- wire terminal block.
SYSTem:MODule:WIRE:MODE WIRE1,1
After changing the (1-wire / 2-wire) mode on the L4433A, you
must cycle power on the L4433A for the new mode setting to take
effect.
Displayed
Channel Means This...
1304 An L4433A (2-wire mode) where the
crosspoint is row 3, column 4.
Displayed
Channel Means This...
1437 An L4433A in 1-wire mode with matrix 4 and
the crosspoint is row 3, column 7.
N O T E