Problem with connecting QK-A032 and QK-AS03 with wind sensor CV7

[Anonymous]

Hi.

I had already QK-A032 working with triducer on NMEA2000 network. Now I wanted to connect additional LCJ Capteurs CV7 wind sensor. As it is NMEA0183 and by it’s wiring description I guess it is RS232 I bought QK-AS03 to bridge the connection. I have connected it using diagram from “QK-AS03_application_note.pdf” with additional connection of GND (brown wire). Picture below shows my setup with wire colors:

Unfortunately it seems to not working – no MVW/XDR sentence is appearing in the network (I’m using wifi connected watcher and still can see triducer sentences). The lowest LED on QK-A032 related to 0183 is not blinking (as the middle one does). I have also tried switching TX/RX connection and NMEA OUT/IN but with no success.

What LCJ Capteurs says about their product is:

4 wires:
– Red: +12 VDC (9-16 VDC, 12mA)
– Blue: 0V
– Yellow: NMEA0183® output + (also described as TX+)
– Green: NMEA0183® output – (also described as RX-)
NMEA0183® sentences
IIMWV: Angle, Wind speed and Measurement validity
WIXDR: Air temperature
PLCJ: manufacturer’s data
PLCJE: manufacturer’s data
Transmission speed: 4800 Bd

What am I doing wrong? Is there any way I can check if it’s the sensor what is broken or the brigde? Both are new.

Thanks in advance.

 

[Anonymous]

Hi Hellmut
Based on your diagram, nothing seems to be incorrect. My initial reaction is to try the process and connections without the bridge – check if it works, if not then swap the TX/RX like you did before.
If that doesn’t resolve your issue it could be a unique sentence/data output issue with the LCJ CV7.
Let me know how you get along!

[Author]

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