Virtual Units - Monitoring Data Types
- Last UpdatedAug 04, 2025
- 1 minute read
Note: The following data types are only recommended for experienced users who are familiar with the terminology and methods associated with the DNP 3.0 protocol.
|
Address |
Plant SCADA Type |
DNP3 Type |
Description |
|---|---|---|---|
|
Unit<x>.RTUStatus |
DIGITAL |
RTU Online status No Object |
R/O Internal online status of a unit. Of limited use as a tag on a unit as if the unit was offline, you could not read the tag anyway. This tag has been superseded by the UnitActiveState.X tags. This address does not relate to I/O data internal to the device, but relates to data internal to the driver, or an action to be performed by the driver. |
|
Unit<x>.LateRefresh |
DIGITAL |
Late cache refresh for device No Object |
R/O Indicates when a device poll has been delayed, resulting in a late cache refresh. Refer to Citect.ini parameter DataLag for further details. This address does not relate to I/O data internal to the device, but relates to data internal to the driver, or an action to be performed by the driver. |
Where:
-
x = device address of the real device as specified in the I/O Device's Address field
-
R/O = read only
-
W/O = write only
-
R/W = read or write