Lake Shore Model 647 Magnet Power Supply User’s Manual
Mainframe Remote Operation
B-6
Table B-2
Additional MPS Mainframe Control Bus Remote Commands
Input
Command
Query Function
–
ADR
Mainframe address. Multidrop address 0-32 available. Commands
sent must have the address as the first character. Query response
will be “00” thru “32.”
LOC
LOCK
UNLOCK
REM
CMD
Mainframe Programming Status. Query response will be the same
as what is programmed. There is no real change in Mainframe
status. MPS equivalent commands are:
LOC UNLOCK
MODE0 MODE0
LOCK REM
MODE2
MODE1
–
ERRC
Mainframe Operational Status. Query response is status byte
register contents, comma, standard event status register contents
(equivalent to *STB? and *ESR? queries). Form of the response is
XXX,XXX where XXX ranges from 000 to 255. *SRE and *ESE are
forced to 255 to get a status response.
–
S1
Mainframe Error Status. Query response is equivalent to ERR?.
WA RA
Output Current Setting. MPS equivalent commands are:
WA ISET
ISET?
RA
PO
OP
Output Current Polarity Setting and Status.
–
AD1, AD8 Output Current Measurement. MPS equivalent command: IOUT?
–
AD2
Output Voltage Measurement. MPS equivalent command: VOUT?
–
AD3 – AD7 Internal Control Voltages. Query response forced to 000 until
required responses are defined.
BAUD
–
Communications Baud Rate (Not Supported). Fixed at 9600.
N
–
Turn Mainframe Power ON (Not Supported).
F
–
Turn Mainframe Power OFF (Not Supported).
RS
–
Reset Mainframe Faults. (Only action taken is I Step Reset.)