
Agilent B1500A/B1505A Programming Guide, Edition 11 4-135
Command Reference
MI
0 to ± 25 V (MFCMU) or ± 100 V (with SCUU)
Example
Statements
OUTPUT @B1500;"MDCV 9,0,5"
NOTE With the SCUU, the source module is automatically selected by the setting value.
The MFCMU is used if the base, bias, and post values are below ± 25 V (setting
resolution: 0.001 V), or the SMU is used if they are greater than ± 25 V (setting
resolution: 0.005 V).
The SMU will operate with the 100 V limited auto ranging and 20 mA compliance
settings.
MI
The MI command sets the DC current source (SMU) for the sampling measurement
(MM10). This command setting clears, and is cleared by, the MV command setting.
The specified channel starts the base current output by the measurement trigger (XE
command and so on), and changes the output value to bias after the hold time
elapses. The hold time is set by the h_base parameter of the MT command.
When multiple channels are used, channel outputs start in the order from lower to
higher channel number 101 to 1001. The channel numbers 1 to 10 correspond to the
channel numbers 101 to 1001 respectively. See Table 4-1 on page 4-16.
If the DI command is executed for this channel, the channel works as the DC current
source set by the DI command.
Execution
Conditions
If Vcomp value is greater than the allowable voltage for the interlock open
condition, the interlock circuit must be shorted.
Syntax MI chnum,irange,base,bias[,Vcomp]
Parameters chnum : SMU source channel number. Integer expression. 1 to 10 or 101 to
1001. See Table 4-1 on page 4-16.
irange : Ranging type. Integer expression. The output range will be set to the
minimum range that covers both base and bias values. For the limited
auto ranging, the instrument never uses the range less than the specified
range. See Table 4-5 on page 4-22.
base, bias : Base current and bias current (in A). Numeric expression. See Table 4-6
on page 4-23, Table 4-8 on page 4-25, or Table 4-11 on page 4-27 for
each measurement resource type. base and bias must have the same
polarity.
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