This example shows a scan device point for the polled request of a set of single-bit binary inputs, a set of 32-bit binary counters, and a set of 32-bit frozen analog input with time of freeze.
The first scan input record causes a message to be issued to the RTU to freeze all of the analog inputs.
The next message to the RTU will read the values specified in records one to twelve.
The first three binary inputs will be returned into the RTAP database as scalar logical values. The next five binary inputs will be returned into RTAP as an array.
The 32-bit binary counters will be returned into the RTAP database as scalar unsigned 32 bit integers. Note that the flag will be saved into the scan task buffer and can be put into the database using the following CE function:
SCAN ([DNP RTU 01.scan input(5)], [.flag])
The 32-bit analog values will be returned into the RTAP database as scalar signed 32 bit integers. Note that the flag and time stamp will be saved into the scan task buffer and can be put into the database using the following CE function:
SCAN_MSTB ([DNP RTU 01.scan input(9)], NULL, [.flag], [.freeze time])
| Point Name - Rtu 01
Alias - DNP RTU 01 Residence = Ram Categories = 00000000000000000000000000000001 CE Indicator = Enabled CE Order = Natural |
||
|---|---|---|
| Attribute Name | DE Type | Value |
| device poll types | rtBYTES4 | (0x)00000004 |
| device PRBX types | rtBYTES4 | |
| scan input control | rtLOGICAL | 1 |
| scan input status | rtUINT8 | |
| failure threshold | rtUINT8 | 3 |
| scan input | (see below) | |
| scan output control | rtLOGICAL | 0 |
| scan output status | rtUINT8 | |
| scan output | (not used) | |
| dev fail threshold | rtUINT8 | 3 |
| remote ID | rtUINT16 | 35000 |
| comm info | ||
| comm optimization | rtLOGICAL | 1 |
| message timeout | rtUINT16 | 1000 |
| message retries | rtUINT8 | 0 |
| debug level | rtUINT8 | 0 |
| clear stats | rtLOGICAL | 0 |
| device stats | rtUINT32 | |
| point control | poll type mask | st buffer size | # of elements | RTAP DE type | deadband type | deadband |
|---|---|---|---|---|---|---|
| 1 | (0x)00000004 | 0 | 1 | 1 | 0 | 0 |
| 1 | (0x)00000004 | 0 | 1 | 1 | 0 | 0 |
| 1 | (0x)00000004 | 0 | 1 | 1 | 0 | 0 |
| 1 | (0x)00000004 | 0 | 1 | 1 | 0 | 0 |
| 1 | (0x)00000004 | 0 | 5 | 1 | 0 | 0 |
| 1 | (0x)00000004 | 1 | 1 | 7 | 0 | 0 |
| 1 | (0x)00000004 | 1 | 1 | 7 | 0 | 0 |
| 1 | (0x)00000004 | 1 | 1 | 7 | 0 | 0 |
| 1 | (0x)00000004 | 1 | 1 | 7 | 0 | 0 |
| 1 | (0x)00000004 | 9 | 1 | 6 | 0 | 0 |
| 1 | (0x)00000004 | 9 | 1 | 6 | 0 | 0 |
| 1 | (0x)00000004 | 9 | 1 | 6 | 0 | 0 |
| 1 | (0x)00000004 | 9 | 1 | 6 | 0 | 0 |
| function code | object code | object variation | qualifier | range start | range length | bit | count | unsolicited |
|---|---|---|---|---|---|---|---|---|
| 7 | 31 | 3 | 6 | 0 | 0 | -1 | 0 | 0 |
| 1 | 1 | 1 | 0 | 0 | 1 | -1 | 0 | 0 |
| 1 | 1 | 1 | 0 | 1 | 1 | -1 | 0 | 0 |
| 1 | 1 | 1 | 0 | 2 | 1 | -1 | 0 | 0 |
| 1 | 1 | 1 | 0 | 3 | 5 | -1 | 0 | 0 |
| 1 | 20 | 1 | 0 | 0 | 1 | -1 | 0 | 0 |
| 1 | 20 | 1 | 0 | 1 | 1 | -1 | 0 | 0 |
| 1 | 20 | 1 | 0 | 2 | 1 | -1 | 0 | 0 |
| 1 | 20 | 1 | 0 | 3 | 1 | -1 | 0 | 0 |
| 1 | 31 | 3 | 0 | 0 | 1 | -1 | 0 | 0 |
| 1 | 31 | 3 | 0 | 1 | 1 | -1 | 0 | 0 |
| 1 | 31 | 3 | 0 | 2 | 1 | -1 | 0 | 0 |
| 1 | 31 | 3 | 0 | 3 | 1 | -1 | 0 | 0 |