Lake Shore Model 647 Magnet Power Supply User’s Manual
Remote Operation
4-16
4.3.1.4 Current Zero Commands Description
The following MPS commands configure the various functions of the current zero features.
IMODE?:
Current Programming Mode Query
Input: IMODE?
Returned:
0
if I MODE switch is set to EXT, or
1
if set to INT.
Remarks:
Returns one character plus up to two terminators. When multiple MPS units are present, the
current programming mode of MPS No. 1 is reported.
VMODE?:
Voltage Programming Mode Query
Input: VMODE?
Returned: 0
if the V MODE switch is set to EXT, or
1
if set to INT.
Remarks:
Returns one character plus up to two terminators. When multiple MPS units are present, the
voltage programming mode of MPS No. 1 is reported.
ZI:
Programs Current Zero Value
Input:
ZI [current zero]
where
[current zero]
= a value between ±999.9999.
Remarks:
Enter this setting after enabling ZI Status. Control Bus inputs 4 places, display rounds to 0.01
or 0.001 place. If a ZI value is entered over the Control Bus, status automatically turns ON.
ZI?:
Current Zero Value Query
Input: ZI?
Returned:
A number between ±999.9999.
Remarks:
Returns nine characters plus up to two terminators.
ZIS:
Programs Current Zero Status
Input: ZIS
[status]
where
[status]
=
0
to turn OFF the current zero, or
1
to turn it ON.
Remarks:
When the current zero is turned off, the current zero value resets to 0.
ZIS?:
Current Zero Status Query
Input: ZIS?
Returned:
0
if the current zero is OFF, or
1
if it is ON.
Remarks:
Returns one character plus up to two terminators.
