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4.3.1.5 Current Step Limit Commands Description
The following MPS commands configure the various functions of the current step limit features.
ISTP:
Programs Output Current Step Limit
Input:
ISTP [step limit] where [step limit] = a value between 0 and +999.9900.
Remarks: Truncates the value to the 0.001 place. The initial condition is +000.000 A. The step limit is
forced to a plus. Control Bus inputs 4 places, display rounds to 0.01 or 0.001 place.
ISTP?:
Output Current Step Limit Query
Input:
ISTP?
Returned: A number between 0 and +999.9900 A.
Remarks: Returns nine characters plus up to two terminators. Value is shown as a "+", but applies to
both positive and negative step changes.
ISTPS:
Programs Output Current Step Limit Status
Input:
ISTPS [status] where [status] = 0 to turn OFF output current step limit, or 1 to turn it ON.
Remarks: The initial condition is 0.
ISTPS?:
Output Current Step Limit Status Query
Input:
ISTPS?
Returned: 0 for OFF, or 1 for ON.
Remarks: Returns one character plus up to two terminators.
STEP?:
Output Current Step Limit Exceeded Query
Input:
STEP?
Returned: 0 if the step limit has not been exceeded, or 1 if it has been exceeded.
Remarks: Returns one character plus up to two terminators.
STEPR1:
Output Current Step Limit Status Reset
Input:
STEPR1
Returned: Nothing
Remarks: When the output current step limit has been exceeded, this command must be issued before
normal operation can be resumed.
Remote Operation
Lake Shore Model 647 Magnet Power Supply User's Manual
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