Lake Shore Model 647 Magnet Power Supply User’s Manual
Remote Operation
4-14
4.3.1.2 Interface Commands Description
The MPS Interface Commands below help configure IEEE-488 interface compatibility for a variety of
computer equipment.
END:
Programs MPS Interface EOI (End Or Identify) Status
Input: END
[status]
where
[status]
=
0
to enable the EOI, or
1
to disable it.
Remarks:
When enabled, the hardware EOI line becomes active with the last byte of a transfer. Not
supported by Control Bus.
END?:
End Of Identify (EOI) Query
Input:
END?
Returned:
0
if EOI is enabled, or
1
if it is disabled.
Remarks:
Returns 1 character plus up to 2 terminators. Not supported by Control Bus.
MODE:
Programs MPS Interface Mode Status
Input: MODE
[status]
where
[status]
=
0
for local mode,
1
for remote mode, or
2
for remote mode
with local lockout. Supported in Control Bus operation.
MODE?:
Interface Mode Status Query
Input:
MODE?
Returned:
0
for local mode,
1
for remote mode, or
2
for remote mode with local lockout.
Remarks:
Returns 1 character plus up to 2 terminators. Supported by Control Bus.
TERM:
Programs MPS Interface Terminating Characters
Input: TERM
[type]
where
[type]
=
0
for a carriage return and line feed (CR)(LF
EOI
),
1
for a line feed and carriage return (LF)(CR
EOI
),
2
for a line feed (LF
EOI
),
3
for no terminating characters (DAB
EOI
)
DAB = Last Data Byte
Remarks:
Terminating characters are sent when the MPS completes its message on output. They also
identify the end of an input message. Control Bus fixes terminators at (CR)(LF) on receipt and
transmission.
TERM?:
Terminator Query
Input: TERM?
Returned:
0
for a carriage return and line feed (CR)(LF
EOI
)
1
for a line feed and carriage return (LF)(CR
EOI
)
2
for a line feed (LF
EOI
)
3
for no terminating characters (DAB
EOI
) DAB = Last Data Byte
Remarks:
Control Bus fixes terminators at (CR)(LF) on receipt and transmission.
