Tenma 72-6851 & 72-6853 Instruction manual
Instrument Specific Commands
The commands in this section are additional to those specified by IEEE Std. 488.2 as Common
Commands.
VV <nrf>
Sequential command.
Operation complete message is generated once the new output voltage has settled to
within ± 3 digits or 5% of the required value. If the voltage fails to settle within 5 seconds
the Operation Time-out Error (bit 3 in the Standard Event Status Register) will be set and
the operation complete message will then be generated.
Operation complete message is generated once the new output voltage has settled to
within ± 3 digits or 5% of the required value. If the voltage fails to settle within 5 seconds
the Operation Time-out Error (bit 3 in the Standard Event Status Register) will be set and
the operation complete message will then be generated.
Set the voltage to <nrf> and verify that the voltage is within ± 3 counts or 5% of the target
value. The value of <nrf> must be in Volts; no multipliers are allowed. If the value of <nrf>,
after rounding, is outside the range of the specified output an execution error will be
generated and the corresponding error number will be placed in the Execution Error
Register, 100 (Maximum set voltage value exceeded) if the value is too large and 102
(Minimum set voltage exceeded) if the value is too small.
V <nrf>
Sequential command.
Operation complete message generated immediately after execution.
This command is identical to VV <nrf> above except that no verification of the output
voltage is performed, thus saving the possible 500ms required to read back the output
voltage. This is useful when it is known that the slew time will be short or during constant
current operation.
I <nrf>
Sequential command.
Operation complete message generated immediately after execution.
Set current limit to <nrf>. The value of <nrf> must be in Amps; no multipliers are allowed.
If the value of <nrf>, after rounding, is outside the range of the specified output an
execution error will be generated and the corresponding error number will be placed in the
Execution Error Register, 101 (Maximum set Amps value exceeded) if the value is too
large or 103 (Minimum set Amps value exceeded) if the value is too small.
OVP <nrf>
Sequential command.
Operation complete message generated immediately after execution.
Set OVP to <nrf>. The value of <nrf> must be in Volts; no multipliers are allowed. If the
value of <nrf>, after rounding, is outside the range of the specified output an execution
error will be generated and the corresponding error number will be placed in the
Execution Error Register, 108 (maximum set OVP value exceeded) if the value is too large
or 107 (Minimum set OVP value exceeded) if the value is too small.
V? Sequential
command.
Operation complete message generated immediately after <rmt> is sent.
Returns the set voltage in Volts in <nr2> numeric format.
The syntax of the response is
V<nr2><rmt>
Example:
If the set voltage is 12.55 Volts the response to the command V? will be
V 12.55<rmt>.
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