PSI BOX Reference
Mode 7 Overview
functions access the current device when no device number is
explicitly specified.
The PSI BOX front panel DIP switches allows you to
specify the INITIAL value of the IEEE current device number,
the default secondary address is none.
During operation, the current device, can be set in two
ways. It may be set at any time when an Ascii number is the
first one or two parameters after a BUS command.
To set device 5 no secondary address as the current device
send the following sequence:-
<CR> BUS 5 <Carriage Return>
To set device 6 with a secondary address of 2 as the current
device send the following sequence:-
<CR> BUS 6, 2 <Carriage Return>
The first two fields of IEEE control status string will be updated
to reflect the information send.
Secondly, PSI BOX allows the current device number to
be changed using the TALK, TAD, LAG, LISTEN and other
addressed IEEE functions. With this method the current device is
automatically set to the last device address specified.
<CR> BUS LISTEN 2 <Carriage Return>
Changes the current device to 2
<CR> BUS LISTEN 2+3 <Carriage Return>
Changes the current device to device 2 secondary address 3.
<CR> BUS TALK 2 LISTEN 3,4
Changes the current device to device 4.
<CR> REMOTE 2,3,4 <Carriage Return>
Changes the current device to device 4.
Page 80
Chapter 7
