Agilent Technologies E1468A, User Manual

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16 Getting Started
Chapter 1
Setting the Logical
Address Switch
The logical address switch (LADDR) factory setting is 112. Valid addresses
are from 1 to 255. See Figure 1-4 for switch information. The address switch
value must be a multiple of 8 if the module is the first module in a "switchbox"
used with a VXIbus command module using SCPI commands.
Setting the Status
Register Switch
Four bits of the status register switch (bits 10-13) define whether the relay
matrix switch module is an E1468A or E1469A. These bits are set
automatically when the terminal module is installed.
To ensure proper operation, even without the terminal module, set the
status register switch as shown in Figure 1-5. However, if the status register
switch is set for the E1468A, but the terminal module is an E1469A (or
vice-versa), the interface will not be able to correctly identify and an error
will occur.
Figure 1-4. Setting the Logical Address Switch
OPEN = Switch Set To 0 (OFF)
CLOSED = Switch Set To 1 (ON)
1
2
8
6
4
3
2
1
6 8 4 2
1
Logical Address
Switch Location
1=CLOSED
0=OPEN
Logical Address = 112
16+32+64=112