LARTET DN-107NN Series, Operation Manual

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1227K34A
2. Sending numeric values over the Profinet network
The maximum data block will be 6 bytes if we work with the Float type, or we will use B0 and
B1 if we work with the Word type.
The structure of the plot is as follows:
Being %QBx, the first output direction of the PLC with which we have configured the display
module and %QBx+1,..,%QBx+3 the direction of the successive bytes.
B0,..,B5 These are the data contained in these addresses, where:
In the
FLOAT type:
B0: Largest Numeric Value Byte (MSB)
B1 and B2: Bytes of the numeric value.
B3: Lowest Numeric Value Byte (LSB)
B4: Heavier Byte of Decimal Point Position (MSB)
B5: Lower Weight Byte of Decimal Point Position (LSB)
In the WORD type:
B0: Largest Numeric Value Byte (MSB)
B1: Lower Weight Byte of Numeric Value (LSB)
Example: The following table shows some examples for displaying numeric values with
different types of data, with the range of addresses defined in fig Fig. 10.
B4..B5 Decimal point possition
01h 00000000.0
02h 0000000.00
04h 000000.000
08h 00000.0000
10h 0000.00000
11h 000.000000
12h 00.0000000
14h 0.00000000
Table 1 Decimal point encoding
%QBx %QBx+1 %QBx+2 %QBx+3 %QBx+4 %QBx+5
B0 B1 B2 B3 B4 B5
Type Frame to send Displayed Value
FLOAT
With sign
%QB68 %QB69 %QB70 %QB71 %QB72 %QB73
12,34
00h 00h 04h D2h 00h 02h
%QB68 %QB69 %QB70 %QB71 %QB72 %QB73
-567,8
FFh FFh E9h D2h 00h 01h
FLOAT
Unsigned
%QB68 %QB69 %QB70 %QB71 %QB72 %QB73
45678
00h 00h B2h 6Eh 00h 00h
%QB68 %QB69 %QB70 %QB71 %QB72 %QB73
99,999
00h 01h 86h 9Fh 00h 04h
WORD
With sign
%QB68 %QB69 %QB70 %QB71 %QB72 %QB73
-600
FDh A8h
%QB68 %QB69 %QB70 %QB71 %QB72 %QB73
1525
05h F5h
WORD
Unsigned
%QB68 %QB69 %QB70 %QB71 %QB72 %QB73
62525
F4 3D