I have just installed an S1 Wheelpilot and Garmin 498 on my 2004 310. I have read all the post I can find on the subject of connecting the GPS to autopilot via NMEA. I have tried all the suggestions and still I can't get the GPS to talk to the pilot. I have connected the NMEA according to the wiring diagram in the GPS 498 Owner's Manual, but it did not work. Here's the link for that- go to page 92 to see the diagram. http://www.garmin.com/manuals/1068_OwnersManual.pdf I also followed the suggestions in the S1 Owner's manual to connect the GPS NMEA + and - to the S1 Computer terminals + and - without luck as well. Go here to see the the diagram for this- page 22: http://www.raymarine.com/raymarine/SubmittedFiles/Handbooks/Autopilots/s1_wheel_pilot/81273_1.pdf I have tried just about every combination I can think of and have tried connecting/disconnecting the ground wire. Has anyone installed the S1 Wheelpilot and successfully interface with a GPS? How did you do it? The only think I haven't tried is to connect the NMEA to the pilot's control head, i.e. the monitor on the pedestal- it has a NMEA connection as well. Thanks. Will
I need help hooking up NMEA
- Thread starter Will12155
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Not an S1 but I have installed on other
AP's. Garmins have a trick, for some reason they carry NMEA data on the Negative lead so you must put a jumper wire between the NMEA negative and the power negative. Didn't seem to make electrical sense to me but that's the way it works. The following obtuse reference is the only one I could find from the Raymarine Support site, but the "other manufacturers" they refer to is Garmin. "Some other manufacturers' GPS units have a slightly different NMEA wiring configuration with a NMEA IN (+), NMEA OUT (+), and a single ground wire which serves as the negative for NMEA IN, NMEA OUT, and Power. Connect the GPS units NMEA OUT (+) to the Raymarine pilot's NMEA IN (+). Then, to connect negative side, run a line from the Raymarine NMEA IN (-) to the GPS ground wire, or to ground." On page 92 of the Garmin manual note the jumper on the AP NMEA minus going to the power ground.
AP's. Garmins have a trick, for some reason they carry NMEA data on the Negative lead so you must put a jumper wire between the NMEA negative and the power negative. Didn't seem to make electrical sense to me but that's the way it works. The following obtuse reference is the only one I could find from the Raymarine Support site, but the "other manufacturers" they refer to is Garmin. "Some other manufacturers' GPS units have a slightly different NMEA wiring configuration with a NMEA IN (+), NMEA OUT (+), and a single ground wire which serves as the negative for NMEA IN, NMEA OUT, and Power. Connect the GPS units NMEA OUT (+) to the Raymarine pilot's NMEA IN (+). Then, to connect negative side, run a line from the Raymarine NMEA IN (-) to the GPS ground wire, or to ground." On page 92 of the Garmin manual note the jumper on the AP NMEA minus going to the power ground.
NMEA Connections
Hello Will: The diagrams look clear, but just to make sure, you have the blue wire from the GPS going to the + terminal on the AP and a connection to the 'power' ground to the (-) terminal. Go into the setup on the GPS and look for 'input' and 'output' format. The Garmins default is "Garmin", and you will have to select "NMEA" for NMEA data to be sent.
Hello Will: The diagrams look clear, but just to make sure, you have the blue wire from the GPS going to the + terminal on the AP and a connection to the 'power' ground to the (-) terminal. Go into the setup on the GPS and look for 'input' and 'output' format. The Garmins default is "Garmin", and you will have to select "NMEA" for NMEA data to be sent.
NMEA Setup
Also the S1 pilot indicates that the GPS needs to have a a waypoint set, and be navigating (active) to that waypoint for the data to show on the AP display. I am assuming that you only see dashes on the different screens 'XTE' 'BTW' 'DTW' etc!
Also the S1 pilot indicates that the GPS needs to have a a waypoint set, and be navigating (active) to that waypoint for the data to show on the AP display. I am assuming that you only see dashes on the different screens 'XTE' 'BTW' 'DTW' etc!
Still NMEA-less in Seattle
Thanks guys. I rechecked my connections and hooked up according to the diagram and Raymoarine's advice in the post. No luck. I also emailed Raymarine Support and they advised to try and hook up to the Control Head because maybe the connection on the SmartPilot Computer is dead. It's brand new so I don't know how it can be dead. I haven't tried putting a waypoint in the GPS- there is a box to do that and it makes sense that if there is no waypoint there is no info to send- so I will do that to see if that makes a difference. Yes, right now I just get dashes. So I'll try the waypoint and if no luck, I guess try connecting to the Control Head- but that would be a major pain as I have routed the wiring down the pedestal stachions and made all the connections..............thanks again for your help. Wish me luck!!! Will
Thanks guys. I rechecked my connections and hooked up according to the diagram and Raymoarine's advice in the post. No luck. I also emailed Raymarine Support and they advised to try and hook up to the Control Head because maybe the connection on the SmartPilot Computer is dead. It's brand new so I don't know how it can be dead. I haven't tried putting a waypoint in the GPS- there is a box to do that and it makes sense that if there is no waypoint there is no info to send- so I will do that to see if that makes a difference. Yes, right now I just get dashes. So I'll try the waypoint and if no luck, I guess try connecting to the Control Head- but that would be a major pain as I have routed the wiring down the pedestal stachions and made all the connections..............thanks again for your help. Wish me luck!!! Will
With some Garmin's
You need to actually turn on the NEMA communication in the menu system. On my 182C I had to do this before NEMA would communicate.
You need to actually turn on the NEMA communication in the menu system. On my 182C I had to do this before NEMA would communicate.
Success!!!!
Thanks all! I created a waypoint, activated it, and like magic the Wheelpilot acknowledged the information. Not only does the gps have to be on, it has to be actively navigating. Great catch.......thanks. Makes perfect sense now that I think about it. So now I am in business! Hopefully I can repay the favor sometime. Thanks again. Cheers, Will Seattle
Thanks all! I created a waypoint, activated it, and like magic the Wheelpilot acknowledged the information. Not only does the gps have to be on, it has to be actively navigating. Great catch.......thanks. Makes perfect sense now that I think about it. So now I am in business! Hopefully I can repay the favor sometime. Thanks again. Cheers, Will Seattle
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