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User Manual NMEA 1083 / MQTT
Document code: MN67948_ENG Revision 1.000 Page 22 of 30
NMEA 0183 ACCESS:
By pressing the “
NMEA 0183 Access ” button from the main window for SW67948 (Fig. 2) the “Definition of NMEA 0183 Sentences” window
appears (Fig. 4).
The NMEA 0183 sentences inserted in this table contain the output data of MQTT. These sentences are accepted by the converter.
The data of the columns have the following meanings:
If the field “ Enable ” is checked, the NMEA 0183 sentence is enabled;
In the field “ Sentence ” the NMEA 0183 sentence is defined;
In the field “ Index ” the Index of the NMEA 0183 sentence is defined;
In the field “ Data Field ” the parameter of the selected sentence to map on MQTT side is defined;
In the field “ Post operation ” the post operation on the data received is defined;
If the field “
Swap All
” is checked, the bytes order on MQTT side will be reversed;
If the field “ Swap 16 ” is checked, a swap by word will be applied;
In the field “ Position ” the byte of the memory array where mapping the data is defined;
In the field “
Mnemonic
” a brief description is defined.
Figure 4: “Definition of NMEA 0183 Sentences” window