PSI BOX PLUS+ Reference
Control Functions
REN.
Assert The Ren Line.
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_
Purpose.
To cause the PSI BOX to assert the REN, remote
__________
enable, line. The PSI BOX is putting the IEEE bus devices
under its control via the bus. If you press the devices front panel
"LOCAL" button it will return to local control unless it has been
put into the LOCAL LOCKOUT state.
Byte 11 in the IEEE control status string contains 1 when the
REN line is asserted true, PSI BOX remotely controlling bus
devices, and 0 when the REN line is false, IEEE devices under
local control.
Whenever a read or write is performed or whenever any
bus command is sent the PSI BOX re asserts the REN line.
Format.
REN
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Params.
None.
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Returns.
IEEE control status string byte 11 = 1
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If the REN line was already true then this command
has no effect.
Example.
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_
BUS REN
:REM ISSUE COMMAND
BUS STATUS
:REM READ STRING
REN at position 11
:REM REN = 1
Bus Activity.
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_
assert REN.
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Chapter 8
