7-4
Chapter 7 APPENDIX
ZW
User’s Manual
Chapter 7
Troubleshooting
Output error No judgment output to
external.
Cables are not connected
correctly.
Check the output circuit and
the wiring for proper
connection.
p.4-2
The signal line is
disconnected.
The signal logic is not correct. Check the logic of the signal. -
The RESET input line is short-
circuited.
Check the input circuit and the
wiring for proper connection.
p.4-2
The non-measurement setting
is set to "Clamp" and
measurement cannot be
performed.
Set the non-measurement
setting correctly. By selecting
the non-measurement setting
to "Keep", the judgment result
before measurement is
disabled can be output.
p.4-28
The analog output is
not correct.
Cables are not connected
correctly.
Check the output circuit and
the wiring for proper
connection.
p.4-2
The signal line is
disconnected.
The voltage and current
values are off the meter.
Set the correct focus based on
the measured value.
p.4-14
An oscilloscope or a high-
speed A/D board is being
used.
Use of these devices may
reduce the resolution. Change
the focus to minimize the
impact.
p.4-14
The binary output is
not correct.
Cables are not connected
correctly.
Check the output circuit and
the wiring for proper
connection.
p.4-3
The signal line is
disconnected.
The signal logic is not correct. Check the logic of the signal. -
The load timing is not correct. Check the timing charts. p.4-33
The binary output object task
selection input is not correct.
Enter the binary output object
task selection correctly.
p.4-10
Communicati
on error
RS-232C
communication
cannot be
established.
Cable wirings are wrong.
Cables are not connected
correctly.
Check the wiring to ensure
proper connection.
p.5-7
Communication settings are
wrong.
Set the same communication
setting for both the controller
and the external devices.
p.5-10
Ethernet
communication
cannot be
established.
The Ethernet cable is not
connected correctly.
Use a cross cable when
connecting the controller
directly with the personal
computer.
p.5-5
The IP address and subnet
mask are not set correctly.
Set the IP address and subnet
mask correctly.
* The settings becomes
effective after a reboot.
p.5-5
The controller and an external
device are not connected at a
1:1 ratio.
Connect the controller and an
external device at a 1:1 ratio.
-
Ethernet
communication
cannot be
established.
The security setting is not
appropriate.
Check if the communication is
blocked due to the firewall
setting on the external device.
-
Other Key input is not
allowed.
The key lock se
tting is turned
ON.
Turn Off the key lock setting. p.3-49
Error type Problem Probable cause Possible countermeasure Page