Lakeshore Learning Materials 647 User Manual

Page 46

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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.

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