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EXT. I/O issues
The EXT. I/O test function can be used to more easily check operation.
See: Instruction Manual "9.5 Checking External Control"
Issue
The instrument is not
operating at all.
The trigger has not
activated.
Unable to print.
Unable to load panel.
The channels cannot be
switched with the LOAD
signal.
Items to check
The IN and OUT values displayed
on the instrument's EXT. I/O test
do not agree with the controller.
The trigger source is set to the
internal trigger (INT).
The TRIG ON time is less than
0.1 ms.
The TRIG OFF time is shorter
than 1 ms.
The TRIG/PRINT signal filter
function is ON.
:INIT:CONT
The
command is
OFF.
The interface is not set to the
printer.
The TRIG/PRINT signal filter
function is ON.
No panel has been saved using
the panel number that you are
trying to load.
The channel numbers have not
been set.
The channels have been disabled.
The scan function has been turned
off.
HIOKI RM3545E965-00
Possible causes
The wiring is
incorrect.
• The connector is
loose.
• The pin number is
incorrect.
• The ISO-COM
terminal is not
connected properly.
• The NPN/
PNP setting is
not configured
correctly.
• Contact (or open
collector) control
is not enabled
(voltage control is
being used).
• No power is being
supplied to the
controller. (Power
does not need to
be supplied to the
instrument.)
If the internal trigger
setting is being used,
the TRIG signal
will not serve as a
trigger.
The TRIG on time is
too short.
The TRIG off time is
too short.
A longer signal
control time is
required.
The instrument is
not in the trigger wait
state.
Set the interface to the printer.
A longer signal
control time is
required.
The instrument
cannot load a panel
that has not been
saved.
The scan settings
have been improperly
configured.
15
Solutions
See: Instruction Manual "9 External
Control (EXT. I/O)"
Select the external trigger setting.
Ensure that the on time is at least
0.1 ms.
Ensure that the off time is at least
1 ms.
• Increase the signal on time.
• Turn off the filter function.
:INIT
:READ?
Send the "
" or "
command.
Turn off the function.
Change the LOAD signal or resave
the panel before the LOAD signal is
asserted.
Configure the scan settings correctly.
"
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