Control Functions
PSI BOX PLUS+ Reference
RESET.
Specifies The Power On Reset Character.
_______
_
____________________________________
Purpose.
To change the character that the PSI BOX recognises
__________
as a command to perform an immediate power on reset.
The @ character, decimal 64, is the default reset character.
Whenever the PSI BOX in mode 7 receives the reset character
from the Host RS232 computer it performs a complete power on
reset. Everything is returned to the default state and an IEEE bus
ABORT command is performed. An ABORT command pulses
the IFC line for approximately 100 micro seconds, then asserts
the REN and ATN line true.
This reset function is to get you out of trouble if the IEEE
bus devices hang up when, say, timeouts are disabled and a
device crashes.
Bytes 70-72 in the IEEE control status string contains the current
RESET value, default is 64, the @ character.
Format.
RESET 33
_________
Params.
One in the range 000 to 255.
_________
Returns.
The IEEE string holds the current RESET value in
__________
position 70-72.
Example.
________
_
BUS RESET 33
The emergency reset byte is now !
Chapter 8
Page 139
