PSI BOX PLUS+ Reference
Control Functions
SEC.
Sends The Secondary Address.
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___________________________
Purpose.
The secondary address is sent to the IEEE bus.
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The SEC command is used to send a secondary address in
the range 0 to 30 to the bus devices.
The PSI BOX asserts ATN and becomes the active
controller, then the number entered by the user is ORed with hex
060h, 96 decimal, and is sent over the IEEE bus. After the
command has been sent the ATN remains true, PSI BOX is the
active controller.
The SEC should only be used after a listen address or a
talk address or the PPC command. The SEC command can also
be sent by using CMD 96-20 or CMD 148
Format.
SEC 1
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Params.
One in the range 0-30 or 128 to 158
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Returns.
None.
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Example.
________
_
BUS LISTEN 5 SEC 1
Tell device 5 secondary address 1 to listen.
Bus Activity.
___________
_
assert ATN if not already so
LAG 5
SCG 1
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Chapter 8
