Configuration
4.18 Data points
CP 1243-8 IRC
138
Operating Instructions, 02/2018, C79000-G8976-C385-03
Format (memory require-
ments)
Data point type CP
[Data point type TIM]
DNP3 object
group
[variations]
Direction
S7 data types Operand area
Floating-point number (64
bits)
Analog Input
30 [6]
in
LReal
Q, M, DB
Analog Input Event
32 [6, 8]
in
LReal
Q, M, DB
Analog Output
41 [4]
out
LReal
Q, M, DB
Analog Output
Event
4)
42 [6, 8]
out
LReal
Q, M, DB
Block of data (1...64
bytes)
5)
Octet String / Oc-
tet String Output
110 [ - ]
in, out
5)
DB
Octet String Event
5)
111 [ - ]
in, out
5)
DB
1)
This object group can be configured in the Data point editor of STEP 7 using the substitute object group 12.
2)
This object group can be configured in the Data point editor of STEP 7 using the substitute object group 20.
3)
This object group can be configured in the Data point editor of STEP 7 using the substitute object group 22.
4)
This object group can be configured in the Data point editor of STEP 7 using the substitute object group 41.
5)
With these data point types, contiguous memory areas up to a size of 64 bytes can be transferred. All S7 data types with
a size between 1 and 64 bytes are compatible.
Substitute object groups (of the table footnotes
1)
,
2)
,
3)
,
4)
)
The initial data point types of the following object groups can be configured using the
substitute object groups listed above:
●
10 [2]
●
11 [1, 2]
●
21 [1, 2, 5, 6]
●
23 [1, 2, 5, 6]
●
40 [1, 2, 3]
●
42 [1, 2, 4, 5, 6, 7, 8]
To configure in the DNP3 CP, use the specified substitute object group.
Assign each data point on the master using the configurable data point index in STEP 7. The
data point of the DNP3 CP is then assigned to the corresponding data point on the master.
Example of configuring the data point Binary Output (10 [2])
The data point is configured as follows:
On the DNP3 CP as Binary Command (12 [1])
On the master as Binary Output (10 [2])
With the data point types Binary Output Event (11) and Analog Output Event (42), you also
need to enable mirroring back; refer to the next section.
Configuration of mirroring back for output events (object groups 11 and 42)
You first create the data point types Binary Output Event (object group 11) and Analog
Output Event (object group 42) as described above as data points of the object groups 12 or
41.
