Control Data Types - Binary Outputs
- Last UpdatedAug 04, 2025
- 2 minute read
This table defines the Plant SCADA variable address required for the specified DNP3 data types.
|
Address |
Plant SCADA Type |
DNP3 Type |
Description |
|---|---|---|---|
|
BO<n>.Select.Latch |
DIGITAL |
Binary Output Control Select (Latch Mode) Object 12 Variation 1 |
W/O. Selects point and mode of operation (the driver will automatically send out the corresponding operate command). Maintains output in specified state. |
|
BO<n>.Select.Pulse |
DIGITAL |
Binary Output Control Select (Pulse Mode) Object 12 Variation 1 |
W/O. Selects point and mode of operation (the driver will automatically send out the corresponding operate command). Only Pulse ON supported. |
|
BO<n>.Select.TC |
DIGITAL |
Binary Output Control Select (TC Mode) Object 12 Variation 1 |
W/O. Selects point and mode of operation (the driver will automatically send out the corresponding operate command). Trip and Close both use the ONTIME parameter. 0=Trip breaker, |
|
BO<n>.Operate.Latch |
DIGITAL |
Binary Output Control Operate (Latch Mode) Object 12 Variation 1 |
W/O. Activates previously selected operation.Maintains output in specified state. |
|
BO<n>.Operate.Pulse |
DIGITAL |
Binary Output Control Operate (Pulse Mode) Object 12 Variation 1 |
W/O. Activates previously selected operation. Only Pulse ON supported |
|
BO<n>.Operate.TC |
DIGITAL |
Binary Output Control Operate (TC Mode) Object 12 Variation 1 |
W/O. Activates previously selected operation. Trip and Close both use the ONTIME parameter. 1=Close breaker, |
|
BO<n>.SelectOnly.Latch |
DIGITAL |
Binary Output Control Select (Latch Mode) Object 12 Variation 1 |
W/O. Selects point and mode of operation but does not operate. Maintains output in specified state. |
|
BO<n>.SelectOnly.Pulse |
DIGITAL |
Binary Output Control Select (Pulse Mode) Object 12 Variation 1 |
W/O. Selects point and mode of operation but does not operate. Only Pulse ON supported.Pulse OFF may be supported in future release. |
|
BO<n>.SelectOnly.TC |
DIGITAL |
Binary Output Control Select (TC Mode) Object 12 Variation 1 |
W/O. Selects point and mode of operation but does not operate. Trip and Close both use the ONTIME parameter. 0=Trip breaker, |
|
BO<n>.DOperate.Latch (See Note below) |
DIGITAL |
Binary Output Control Direct Operate (Latch Mode) Object 12 Variation 1 |
W/O. Selects and activates point operation.Maintains output in specified state. |
|
BO<n>.DOperate.Pulse (See Note below) |
DIGITAL |
Binary Output Control Direct Operate (Pulse Mode) Object 12 Variation 1 |
W/O. Selects and activates point operation. Only Pulse ON supported. |
|
BO<n>.DOperate.TC (See Note below) |
DIGITAL |
Binary Output Control Direct Operate (TC Mode) Object 12 Variation 1 |
W/O. Selects and activates point operation. Trip and Close both use the ONTIME parameter. 1=Close breaker, |
|
BO<n>.Configure.Ontime |
LONG |
Binary Output Control Configure Ontime Object 12 Variation 1 |
W/O. Time in milliseconds of momentary contact closure. (Used in Pulse ON, Trip and Close modes). |
|
BO<n>.CancelSel |
DIGITAL |
Binary Output Control Cancel Current SelectOnly |
W/O. Clear OPERATE status bits and cancel the SELECT operation to the RTU. |
where:
-
n = Point index number (range from 0 to 2048)
-
R/O = read only
-
W/O = write only
-
R/W = read or write
Note: DNP (Subset level 1) supports a ‘Direct Operate without acknowledgment’, but as this does not verify the success of the command, only ‘Direct Operate’ is currently implemented.