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