8.7 Command Message Description
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Chapter 8 Controlling the Instrument From a Computer
When network A, D, E or F is selected
Numerical value1
Note
• Use this command after executing the :MODE command to activate the mea-
surement mode.
• Depending on the equipment under test settings and measurement mode, the
settable power supply polarity and the status of equipment under test vary.
• Set unused bits (bit 7, bit 12 through bit 15 (numerical value 1), bit 6 through
bit 15 (numerical value 2)) to 0.
• For network A, C, D, E, F or G automatic measurement cannot be set for
internally powered equipment.
• Free current cannot be set.
Queries the type and setting of automatic measurement
Bit Item
Explanation
Earth leakage current
Leakage current
between enclosure
and line
Enclosure - Earth
leakage current
Enclosure - Enclosure
leakage current
Free current
(only network A)
bit0 Normal condition Set at least one of bits
0 and 1 to 1. Equip-
ment other than class I
equipment cannot be
set.
Set all bits to 0.
Set at least one of bits
0, 1 and 2 to 1. bit2
cannot be set for class II
equipment.
Devices with internal
power, bit1 and bit2
cannot be set.
bit1
Single-fault condition
:Disconnection of one wire
in power line
bit2
Single-fault condition
:Disconnection of earth
conductor in power line
Set all bits to 0.bit3
Single-fault condition
:Application of 110% volt-
age(Positive phase)
Set all bits to 0.
bit4
Single-fault condition
:Application of 110%
voltage(Negative phase)
bit5 Positive phase Set at least one of bits
5 and 6 to 1. Devices
with internal power
supplies cannot be set.
Set at least one of bits 5
and 6 to 1. Devices with
internal power supplies
cannot be set.
bit6 Negative phase
bit7
Not used
Set all bits to 0. Set all bits to 0.
bit8 DC
bit9 AC
bit10 Application of line voltage L Set at least one of
bits 10 and 11 to 1.
Devices with inter-
nal power supplies
cannot be set.
bit11
Application of
line voltage N
bit12
Not used Set all bits to 0.
bit13
bit14
bit15
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