Omron NB3Q-TW00B Startup Manual Manual page 99

12
The cause of PT prompting "RTC Device error" and the solution
When PT 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 Button Component] in the
project's common sheet, with the address set to LW.B 9298.0 and the set type to [Set On when
Screen Open] status.
13
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.
14
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. The screen should be switched with the PLC control, but if switching the screen with
the procedure such as screen switching (not by the PLC control), as the value of the PLC
address does not change, the screen cannot be accessed repeatedly with PLC control.
Solution: add a [Command Button component] to the screen of leaving designated screen, with
the address set to the same as the one in [PLC Control Switch Screens], and the property to
[Set at Screen Close] (This value can be set as a negative).
15
When calling a screen with a direct screen, why does not the target screen show up completely
When calling a target screen with a direct screen, the left top corner is taken as the base point.
If the size of the direct screen component is smaller than then target screen, 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 screen component.
16
Components on the screen such as the indicator, button etc. will not show up properly, while
offline test still works as normal
It may be caused by communication disruption between the PT 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.
17
Can the PT 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 Switch] component, with the address as LB9045. When LB9045=1, the
PT will restart.
NB-series Programmable Terminals Startup Guide Manual(V109)
6 Maintenance and Troubleshooting
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