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AL app rate module not seeing implent switch
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tedbear
Posted 6/6/2025 06:20 (#11251156 - in reply to #11250771)
Subject: AL App rate Module not reacting to an implement switch


Near Intersection of I-35 & I-90 Southern Mn.
provident - 6/5/2025 19:19

cant seem to get module to map from implement switch. it is always mapping even with no switch connected. tryed changing std or reverse but it just doesnt register. switch is operating correctly. this is for planting with a drill.

does the module get stuck on a flow input or previous configuration? i have even deleted the drill and done a new setup. i did try using it to meter pulses for a dry fertilizer spreader.


As you are likely aware the Ag Leader Application Rate Module can be used different ways. I consider there to be 3 different ways that the Application Rate Module can be used. Each requires its own configuration.

1) Create a Coverage Map only. No indication is made of any type of applied rate of a product, the map just indicates where coverage has taken place. A screen Icon or implement switch can be used to start/stop the Coverage Map. Acres are calculated and displayed.

2) Create a Coverage and Applied Rate Map. Here a flow meter, shaft sensor or some other device is used to inform the system that product is being applied. The system calculates the applied rate, acres etc. and make both a Coverage and Applied Map. It cannot control the application rate.

3) Create a "partnership" situation where the Ag Leader system works with a third party device and communicates back/forth with it. A common combination would be to use an Ag Leader Display and Application Rate module with a Raven 440 or the like. The two devices exchange information via a special serial cable.

I have been successful in using all 3 of these ways for my own personal use and also when I worked as a Tech for customers.

It appears that your situation is #1 above, since it seems that your goal is to produce a Coverage Map of where your drill has applied. You mention that you have tried using pulses for a dry fertilizer in the past. That would be situation #2. That configuration would be different.

You are concerned that this previous use may be haunting you now. Since the configurations must different, it should have no effect of your current configuration. You do need to be certain that you are going down the proper path to create the configuration. For situations like #2, an implement switch is NOT required since both the Coverage and Applied Rate map start/stop based on product flow information from a flow meter or shaft sensor.

Here's what I suggest. Unplug your implement switch and set the switch setting to NONE. Then drive around and use the onscreen icon to test if you can start/stop the coverage map. This should be successful. In a worst case scenario, you could operate this way and start/stop coverage with the screen icon on each end. Even if you "let it run" on the ends, it might still be useful.

If you are not able to control the coverage with the onscreen icon with the implement switch disconnected it will not work properly when the switch is used. If this is the case something is wrong and it doesn't involve the implement switch.

Let's suppose that you are successful when using the onscreen icon. Then attach your implement switch and try it. If it works great, if it still stays ON at all times, there is some confusion with the implement switch. When testing, raise/lower the drill but do not use the screen icon. The screen icon should just be an indicator of the status then. Using it with an implement switch does allow you to override the switch but can cause confusion.

It is possible that your Application Rate Module has become damaged. I was given one that was damaged and didn't test out correctly. I suspect the owner had inadvertently applied power to a ground pin and burned out something internally. By some rather crude trickery, I was able to wire around this problem and use the module.

Were you successful when you tried the Application Rate Module with the fertilizer and "pulses" from some type of shaft encoder? If not, this might have been due to the type of shaft sensor you were using. With certain shaft sensors, it is necessary to use a "pull up" resistor on the signal line since some shaft sensors do not provide this. If you use a Raven flow meter with a liquid situation, Raven provides a pull up resistor in their flow meter so this is not necessary.

I found this necessary for the mag meter setup on my Nephew's manure wagon. It is not necessary on our planter for monitoring starter fertilizer since a Raven flow meter is involved there.

The Application Rate Module is not supported with the new GO displays but should work fine with most older Ag Leader CAN displays.







Edited by tedbear 6/6/2025 07:08
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