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4-35
4.9.4.
Dimmer linked control and data sharing with RS-485
By connecting display units with RS-485 network, dimmer control can be linked and data can be
shared.
To connect display units with RS-485 network, the display units must be identified by setting RS-485ID
in each display unit.
Up to 10 display units can be connected.
The same baud rate must be set for all the display units. Normally, the baud rate is set to 115200bps.
It is possible to select key control or control by an external dimmer unit for dimmer control. Display units
that are linked can be selected by classifying display units under dimmer control into groups.
However, the same control method such as key control or control using an external dimmer unit must
be applied among the display units that are linked. Up to 10 groups are allowed.
Data can be shared by outputting a NMEA sentence to the RS-485 network.
By sharing data, the same data can be displayed.
To output data, the data must be received from the external unit.
A typical connection example for implementing dimmer control and data sharing with RS-485 is shown
below. Refer to the setting reference section for the setting method.
The connection conditions of the connection example are as follows.
Display unit 1 Display unit 2 Display unit 3 Display unit 4
Setting
reference
section
RS-485ID
1 2 3 4
4.9.4.1
Dimmer control unit
External
dimmer unit
External
dimmer unit
Dimmer key
Dimmer key
4.9.3
Dimmer
group 1 1 2 2
4.9.4.3
Input data
RS-422
-
-
-
Vessel speed
4.9.5.2
RS-485 Vessel speed Vessel speed Vessel speed
-
–
Output data RS-485
-
-
-
Vessel speed
4.9.4.4
Baud rate [bps]
115200
115200
115200
115200
4.9.4.4
Screen display
Vessel speed Vessel speed Vessel speed Vessel speed
4.5.4
In this example, dimmer control of ID1 and that of ID2 are linked by the external dimmer unit and
dimmer control of ID3 and ID4 are not linked.
Dimmer control of ID3 and that of ID4 are linked by key operation and dimmer control of ID1 and that of
ID2 are not linked.
By transmitting vessel data that is input from ID4 through the RS-485 network, vessel speed data can
be displayed on all the display units.
Connection example
ID1
ID2
ID3 ID4
Group 1
Group 2
RS-485 network
RS-422
Vessel speed data
Vessel speed data
External dimmer unit
Содержание NWZ-4610
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Страница 20: ...2 4 COG screen When the COG is invalid is displayed COG ...
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Страница 105: ...Appendix 1 Appendix Appendix 1 Outline and Setting Drawing 1 NWZ 4610 MAIN DISPLAY Desk form type ...
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