Scx-20 to FCV-1150 through NMEA 2000 network

[buefin039]

Current configuration

SCX20 to NMEA 2000 backbone feeding TZT3 displays.

NMEA2k2 convert from NMEA 2000 network feeding data to FCV-1150.

Do you follow same protocol for port connections and NMEA0183 settings as you do for the SCX21 to the FCV-1150 ?

 

[Titanic II]

Yes, transmit data to receive data, crossover protocol. Transmit data is "TD", receive data is "RD". 1 is port one, 2 port two. For instance, IF-NMEA2K2 output must go to the same port on the FCV-1150.

IF-NMEA2K2------------------ FCV-1150
TD_A Pnk----------------------NMEA 1 or 2 RD_A
TD_B Pnk/Blk------------------NMEA 1 or 2 RD_B

If you want to convert the FCV1150 water depth and temp (if available) for output onto the NMEA2K2 bus:

IF-NMEA2K2---------------------FCV-1150
RD_A L Blu/Yel----------------NMEA 1 or 2 TD_A
RD_B L Blu/Grn---------------NMEA 1 or 2 TD_B

 

[buefin039]

Thanks Titanic.

I currently have all connections exactly as you described. I am sending depth and temp to my TZT3 units no problem.

I was most curious how to setup my NMEA setting on the menu of the FCV-1150 to ensure I continue to output Temp/depth while properly receiving heave data. I already configured the the SCX-21 on the FCV-1150 for its location and the transducer location. I just want to make I am getting my NMEA settings correct.

 

[Titanic II]

 

[buefin039]

Titanic, thank you very much for this. This is as thorough a response and anyone could hope for.

I am sure this will help other people as well.

Thanks again for taking the time to do that.

 

[buefin039]

I configured tonight and my issue was that I did not have the IFNMEA-2k2 set to high speed. Port monitor did not show heaving data on the FCV-1150. I cut the orange wire, reset the IFNMEA-2k2 and all was good. BUT I lost the output of depth to my TZT3 system and most likely ocean temperature as well. I assume the FCV-1150 output these sentences at 4800 bps so with the converter in high speed they are not being sent to the N2K network. I have plenty of 2K2 converters so I am going to add a second tomorrow. One will send and receive 0183 data at 4800 bps to port one on the FCV-1150 and the other will only send sentences at 38400 bps to port 2 (FCV-1150 only receives on port 2). I will set the nmea port setting to in/out as I believe this only changes port one (spots 1 and 2) between talk and receive. Port two (spots 5 and 6) is always just in. Please see my attached interconnect diagram and let me know if you think there is any issues with my plan.

 

[Titanic II]

Your diagram looks great. Yes, the NMEA2 in is sat compass and fixed at 38.4kBPS. The NMEA1 is IN/OUT and fixed at 4800. It is not very clear in the manual because it only mentions the baud rate for NMEA2.

 

[buefin039]

My other 2k2 converters had different colors. So i made an updated diagram for anyone to use that shows how to connect an FCV-1150 to a NMEA 2000 network so it can send and receive all accepted PGNs including SCX-20 sat compass. They are attached in PDF and JPG

 

[Titanic II]

Thanks!
The wire colors on the IF-NMEA2K2 did change during the production run. The newest IF-NMEA2K2's have the PNK, PNK/BLK, Lt Blu color scheme.