ADF Web HD67616-422-A1, User Manual

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User Manual NMEA 0183 / Modbus Slave - Converter
Document code: MN67616_ENG Revision 1.000 Page 20 of 30
Figure 3b: “Set Communication  Modbus Slave”
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Figure 3c: “Set Communication  RS485/RS422”
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M
ODBUS
S
LAVE
:
This section is used to define the main parameters of Modbus line. The means of the
fields are:
In the field “ Serial ” the serial port to use is defined (RS232 or RS485);
In the field “ Baudrate ” the baudrate for the serial line is defined;
In the field “ Parity ” the parity of the serial line is defined;
In the field “ Stop Bits ” the number of Stop Bits of the serial line is defined;
In the field “ ID Device ” the ID of Modbus side of the converter is defined;
If the field “ Read with Input Register / Status Function ” is checked, it is
possible to read the Input bytes of NMEA0183 side with Input Registers
(Function 04) and write the Output bytes of NMEA0183 side with Holding
Registers (Function 06/16). The Output bytes are readable with Function 03.
Otherwise, only Holding Registers will be used and the Output bytes of
NMEA0183 side cannot be read back.
RS485
/ RS422:
This section is used to define the main parameters of RS485 / RS422 line. The means
of the fields are:
If the field “ Enable RS485 / RS422 ” is checked, the serial port is enabled;
In the field “ Baudrate ” the baudrate for the serial line is defined;
In the field “ Parity ” the parity of the serial line is defined;
In the field “ Stop Bits ” the number of stop bits of the serial line is defined.