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User Manual NMEA2000 / Modbus TCP Slave
Document code: MN67225_ENG Revision 1.100 Page 19 of 30
If “Device from May 2014 (with Dip-Switches)” is set in the section “Set Communication”, the window appears like below:
In the field “ PGN ” insert the PGN of the NMEA 2000 frame;
In the field “ Source Address ” insert the Source Address of the NMEA 2000 frame;
If the field “ Transport Protocol ” is checked the frame uses Transport Protocol functions;
If the field “ Fast Packet ” is checked the frame uses Fast Packet functions;
In the field “ Start Byte ” insert the byte which you would start read, this field is enable only when the field Transport Protocol is
checked;
In the field “ Num Bytes ” insert the number of byte you would read, for example your Start Byte is 20 an Num Bytes is 10, you can
read the byte from 20 to 30;
If the field “ Cancel Data ” is checked, after the timeout defined in the “Set Communication” window the value of the data of the
NMEA 2000 frame become “0xFF”;
If the field “ On Request ” is checked, the converter send the request frame to the related PGN in order to receive the frame with the
data;
In the field “ Time (ms) ” is possible to insert the interval used to send the frame “On Request”;
In the field “ Mnemonic ” a description of the frame is defined.
Figure 4b: “Receive NMEA 2000 Frames” window