Omron NB3Q-TW_B Startup Manual page 100

11
How to keep the time in the event record and in the PLC synchronized
Check [Use The External Clock for Event] in [HMI Attribute] __ [HMI Extended Attributes], as
follows:
Meanwhile, clock register data inside the PLC is also needed to be transmitted to the local
register LW9010-9017. For details, refer to the NB-Designer User Manual [3-10-3 HMI
Extended Attributes].
12
Why cannot the history events be saved even if "saving" is selected
In most of this kind of cases, although the customer selects to save them, the No. of events to
be saved which is 0 by default is not changed to the No. the customer needs, thus the problem
occurs. In this case, just set the No. of events to be saved to make it work. This is done in [HMI
Attribute] --- [Historical Events Storage], as follows:
NB-series Programmable Terminals Startup Guide Manual(V109)
6 Maintenance and Troubleshooting
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