Omron NX-series User Manual page 230

Appendices
l Functional Classification: Power Supply
Variable name _PowerOnHour
Meaning Total Power ON Time
Function Contains the total time that the power has been ON.
Contains the total time that the Communication Control Unit has been ON in 1-hour increments.
To reset this value, overwrite the current value with 0.
The value is not updated after it reaches 4294967295.
This variable is not initialized at startup.
Data type UDINT
R/W access RW
*1. This system-defined variable is not applicable for the data backup function even with a Retain attribute.
Variable name _PowerOnCount
Meaning Power Interruption Count
Function Contains the number of times that the power supply has been interrupted.
The value is incremented by 1 each time the power supply is interrupted after the first time that the power to the
Communication Control Unit was turned ON.
To reset this value, overwrite the current value with 0.
The value is not updated after it reaches 4294967295.
This variable is not initialized at startup.
Data type UDINT
R/W access RW
*1. This system-defined variable is not applicable for the data backup function even with a Retain attribute.
Variable name _RetainFail
Meaning Retention Failure Flag
Function TRUE at the following times (failure of retention during power interruptions).
•
When an error is detected in the battery-backup memory check at startup.
FALSE at the following times (no failure of retention during power interruptions).
•
When no error is detected in the battery-backup memory check at startup.
•
When the Clear All Memory operation is performed.
Data type BOOL
R/W access R
A - 56
Retained
*1
Retained.
Retained
*1
Retained.
Retained Not retained.
NX-series Communication Control Unit Built-in Function User's Manual (Z396)
Global/local Global
Range of values 0 to 4294967295
Network Publish Published.
Global/local Global
Range of values 0 to 4294967295
Network Publish Published.
Global/local Global
Range of values TRUE or FALSE
Network Publish Not published.