Lake Shore Model 642 Electromagnet Power Supply User’s Manual
5-34
Computer Interface Operation
LIMIT
Limit Output Settings Command
Input:
LIMIT <current>, <rate> [term]
Format:
+nn.nnnn, +nn.nnnn
<current>
Specifies the maximum output current setting allowed: 0 – 70.1000 A.
<rate>
Specifies the maximum output current ramp rate setting allowed: 0.0001 – 99.999 A/s.
Remarks:
Sets the upper setting limits for output current, compliance voltage, and output current ramp rate. This
is a software limit that will limit the settings to these maximum values.
LIMIT?
Limit Output Settings Query
Input: LIMIT?
[term]
Returned:
<current>, <rate> [term]
Format:
+nn.nnnn, +nn.nnnn
(Refer to command for description)
LOCK
Keypad
Lock
Command
Input:
LOCK <state>, <code>[term]
Format:
n,nnn
<state>
0 = Unlock, 1 = Lock All, 2 = Lock Limits.
<code>
Specifies lock-out code. Valid entries are 000
–
999.
Remarks:
Locks out all front panel entries operations.
Example: LOCK
1,123[term]
–
Enables keypad lock and sets the code to 123.
LOCK?
Keypad
Lock
Query
Input: LOCK?[term]
Returned:
<state>,
<code>[term]
Format:
n,nnn
(Refer to command for description)
MAGWTR
Magnet Water Mode Command
Input: MAGWTR
<mode>[term]
Format:
n
<mode>
0 = Manual Off, 1 = Manual On, 2 = Auto, 3 = Disabled.
Example: MAGWTR
2[term]
–
Places the magnet water mode to Auto, which will automatically control the
magnet water valve based on the calculated output power.
MAGWTR?
Magnet Water Mode Query
Input: MAGWTR?[term]
Returned:
<mode>[term]
Format:
n
(Refer to command for description)
MODE
IEEE Interface Mode Command
Input: MODE
<mode>[term]
Format:
n
<mode>
0 = Local, 1 = Remote, 2 = Remote with local lockout.
Example:
MODE 2[term] –
Places the Model 642 into remote mode with local lockout.
MODE?
IEEE Interface Mode Query
Input: MODE?[term]
Returned:
<mode>[term]
Format:
n
(Refer to command for description)
