Control Data Types - Counters
- Last UpdatedAug 04, 2025
- 1 minute read
This table defines the Plant SCADA variable address required for the specified DNP3 data types.
|
Address |
Plant SCADA Type |
DNP3 Type |
Description |
|---|---|---|---|
|
C.Freeze (See Note 1 below) |
DIGITAL |
Counter Freeze Command Object 20 Variations 1..8 |
W/O. Copy all counters to a freeze buffer. |
|
C.FreezeClear (See Note 2 below) |
DIGITAL |
Counter Freeze Command Object 20 Variations 1..8 |
W/O. Copy all counter to a freeze buffer, and then clear all counters to 0. |
where:
-
n = Point index number (range from 0 to 2048)
-
R/O = read only
-
W/O = write only
-
R/W = read or write
Note:
1. DNP (Subset level 2) supports an ‘Immediate Freeze without acknowledgment’, but as
this does not verify the success of the command, only ‘Immediate Freeze’ is currently
implemented.
2. DNP (Subset level 2) supports a ‘Freeze and Clear without acknowledgment’, but as
this does not verify the success of the command, only ‘Freeze and Clear’ is currently
implemented.