Omron NB3Q-TW_B Startup Manual page 101

6 Maintenance and Troubleshooting
13
The cause of HMI prompting "RTC Device error" and the solution
When HMI prompt "RTC Device error", it's probably because the clock chip fails.
If the recipe component or the system time is not used, this notice can be shielded without
affecting other operations. The method to shield it is: place a [Bit State Setting Component] in
the project's common window, with the address set to LW.B 9298.0 and the set type to [Set On
when Window Open] status.
14
What if there is one digit less when displaying negative numbers, or it displays "****"
When the data type in the software is decimal, the minus sign also occupies a bit, therefore one
more integer bit is needed.
15
When switching the screens with PLC control, why cannot the screen being set up be accessed
repeatedly
It's likely because the value of the PLC address through which screen switching is set does not
change. When switching the screen and leaving it in other ways (eg. by screen switching
button), as the value of the PLC address does not change, the screen cannot be accessed
repeatedly with PLC control.
Solution: add a [Multi-State Setting component] to the window of leaving designated screen,
with the address set to the same as the one in [PLC Control Change Window], and the attribute
to [Set at Window Close] (This value can be set as a negative).
16
When calling a screen with a direct window, why does not the target screen show up completely
When calling a target screen with a direct window, the left top corner is taken as the base point.
If the size of the direct window component is smaller than then target window, the display may
be incomplete. Therefore, when editing the target screen, place the component with the left top
corner as the base point and make sure that the size of the target screen is the same as that of
the direct window component.
17
Components on the screen such as the indicator, button etc. will not show up properly, while
offline simulation still works as normal
It may be caused by communication disruption between the HMI and the slave. If the
communication fails and the component on the screen takes the slave's address, components
like the indicator and buttons will not show up properly. Restoring the communication will solve
this problem. With respect to how to restore the disrupted communication, refer to
communication-related issues in this manual.
18
Can the HMI be restarted without interrupting the power supply
There are two ways to restart it without interrupting the power supply:
Method 1: Press the RESET button on the back of the panel to restart it.
Method 2: Make a [Bit State Switch] component, with the address as LB9045. When
LB9045=1, the HMI will restart.
6-12 NB-series Programmable Terminals Startup Guide Manual(V109)