YOKOGAWA VZ20X, User Manual

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IM 77V01B01-01EN 5th Edition: 2023.03.07-00
Q5 A communication error is displayed. What is the cause of this?
A5
The following are probable causes.
•
An illegal value has been set.
→
Set the input scale so that the following relationship is satisfied:
Min. value of input scale < Max. value of input scale
→
Set the input range to satisfy the following conditions:
Max. value of input range: (min. value of input range + 1 digit) to upper limit value
of measurement range
Min. value of input range: lower limit value of measurement range to (upper limit
value of input range - 1 digit)
•
There is a difference between written parameters and read parameters.
→
A communication error sometimes occurs if a different VZ20X is connected after
the configuration file is written and then reading of parameters on the unit is
performed. After writing parameters, re-connect by beginning with a new
connection before reading the parameters on the unit. Then, connect the other
VZ20X and execute reading of parameters.
Q6 Is it possible to check the content of backed up configuration files?
A6
Content cannot be checked offline by VZ Configurator.
The configuration file can be checked only when there are one or more VZ20X units.
Backed up configuration settings can be checked by connecting VZ Configurator to
VZ20X, and then specifying the file at "Load settings file to the main unit".
Q7 Input adjustment was performed in an Ethernet connection. After adjustment ended,
VZ20X was rebooted and the connection could no longer be made by the Ethernet
connection. What is the cause of this?
A7
Check the following.
Check the setting of the DHCP function on the VZ20X. Use VZ Configurator to
change the DHCP function setting to OFF via a USB connection. When the setting is
ON, the IP address sometimes changes and communication is no longer possible.