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On our older machine we have 2 DT9812. Each card has 1 AI, AO, and counter. The counter uses the CounterTimerSubsystem with the following configuration. ctSS = device.CounterTimerSubsystem(0); ctSS.CounterMode = CounterMode.Measure; ctSS.StopEdge = EdgeSelect.GateFalling; ctSS.StartEdge = EdgeSelect.GateRising; ctSS.DataFlow = DataFlow.Continuous; ctSS.Clock.Source = ClockSource.Internal; ctSS.Clock.Frequency = 5000; ctSS.MeasureDoneEvent += CtSS_MeasureDoneEvent; Our new machine will need 3 counters, and up to 5 AI. However, the analog input isn't a solid requirement. We can read those elsewhere if necessary. I am aware I'll need to rewrite my code to use the universal library. That won't be an issue, as long as the driver can raise an event when the counter increments. Is there a reason so many DT models say "Not recommended for new applications."? If we knew why, we might be more inclined to use them.

The old machine used DT-Open layers. However, we're building a new machine, and these machines tend to last 20+ years. We're concerned about using a board that "isn't recommended for new applications" on a new machine. That's why I'm asking if the Universal Library can raise an event when a counter is incremented. If it can, that expands the range of products that might work for us. If not, I need to recommend to my electrical engineer to only select from your DT product range.

My company needs to buy a new counter card. However, when I look at the Universal Library help file, I don't see a way to raise an event when the counter is incremented. Does this functionality exist in the Universal Library? At this point it looks like my options are to use the deprecated DT9812, or to find another vendor.

I had an old model DT9812, and the API raised events when the counter incremented. I'm looking at replacing that with a newer counter card, but I don't see count changed events in the new API. Does this functionality still exist? If so, can you direct me to the correct API call?

I have a DT9812. In device manager, I uninstalled the device, and hit the checkbox to uninstall the driver for the device. I then repairedOmni-CD software install package. The device was still showing as an "unknown device" under "other devices, so did a full uninstall & reinstall of the Omni CD software. However the device still does not detect drivers. Can someone advise next steps? Changing the USB port the device is using did not help. The device itself is fine - when I plugged it into a different computer ti was properly recognized.

@Fausto That worked great. After reprogramming the device I'm able to see the serial numbers and the devices appear to be fully operational. Thanks! @Jim Windlinger In the link from Fausto there's a "current" folder. The flash file is in there.

We purchased several DT9812 devices this year, and about 1/3 of them have stopped working. When plugged into the PC, Device Manager shows no serial number. Can someone provide the latest firmware for these? It looks like the first step is to try to reprogram them.

When I first rebooted, both device were not detected. At this point the OpenLayers entry does not exist. Image 1: I unplugged and replugged both devices. Image 2: Device properties. For some reason I do not have the ability to update firmware from this page. OpenLayers control panel: If you think a firmware update might fix the issue, how can I do this? The option is missing from the device property status page.

I updated with the drivers you linked, but devices still are not always recognized on a PC reboot. I've tested this on 3 PCs, and I have 2 DT9812 devices. The issue occurs with both devices. Is there anything else i should try?

I have 2 DT9812 that often fail to be recognized by device manager on PC reboot. The error is "Device descriptor request failed". This occurs on multiple computers running Windows 10. The usbs are direct into the PC (no hub). Unplugging the device and plugging it back in fixes the issue. Is this a known issue, or is there a recommended fix? Installed drivers: QuickDaq 3.7.0.46 DT Open Layers 7.8.2