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129
Connections (Instrument and Control Device)
The connector frame is connected to the instrument’s rear panel (metal portion) as well as the
power supply inlet’s protective ground terminal.
When loading panel data by means of a command or touch panel operation, fix pins 4, 5, 22, 23,
and 24 to ON or OFF (so that they are all either open or all shorted).
For more information about checking EXT I/O input and output, see “11.5 Input Test/Output Test”
Signal functions
(1)
Isolated power supply output
Pin
Signal
NPN/PNP switch setting
NPN
PNP
8
ISO_5V
Isolated power 5 V
Isolated power supply -5 V
9, 27
ISO_COM
Isolated power supply common Isolated power supply common
(2) Input signals
Signal
Description
For more information
TRIG
•The instrument operates at the TRIG signal’s ON edge.
•Operation varies depending on the trigger source.
When the trigger source is
EXTERNAL
: Measurement is
performed the set number of times.
When the trigger source is
INTERNAL
: The TRIG signal is
ignored.
•Measurement must be delayed (by the delay time) after switching
ranges or loading panel data in order for measured values to
stabilize. The delay time varies with the measurement target.
•When automatic output is set to
ON
, the measured value being
held internally will be output immediately after TRIG signal input.
By turning on the PRINT signal, it is possible to print the measured
value and judgment result that are current as of the signal’s edge.
KEY_LOCK
When the KEY_LOCK signal is on, all instrument key operations
and touch panel operations (except operation to cancel the key-
lock state) are ignored.
LOAD0 to
LOAD4
•Inputting the LOAD signal corresponding to the desired panel
number for 10 ms will cause that panel to be loaded. Do not
change the LOAD signal until the load or switching operation is
complete. LOAD0 is the LSB, while LOAD4 is the MSB.
•The TRIG signal is ignored while panel load operation is being
performed.
•The LOAD signal is valid even when the instrument is being
controlled using communications commands (i.e., when the
instrument is in the remote state).
•All key operations and touch panel operations are ignored while
the LOAD signal for a panel number for which settings have been
saved is on.
•When loading panel data by means of a command or touch panel
operation, fix pins 4, 5, 22, 23, and 24 to ON or OFF (so that they
are all either open or all shorted).
IN0,
IN1
These pins can be used as general-purpose input pins to monitor
the status of input with the
:IO:INPut?
command.
Communication
Command Manual
on the included
application disc.
0Input signals are ignored while the Measurement screen is not being displayed and while errors
and other messages are being displayed.
External Control (EXT
I/O)
11
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