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the "New Data" is no longer generated event

Apr 29, 2015
Eduardo Alatorre wrote
I want to know what are the conditions for the new event data is generated, because in my system monitoring, this event no longer occurs and no DI-155 data are received.

Thanks in advance
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3 Answers
Apr 29, 2015
Ken agent wrote
Unplugging your device and connecting it to a different USB socket usually causes its COM port number to change.

If you are using WinDaq.ocx, the NewData event will stop occurring if WinDaq is no longer running or you have changed the set of channels enabled, the sample rate, or gain on any channel. Exit your program. If WinDaq is still running, use File, Save Default Setup and exit WinDaq. Unplug and reconnect the DI-155, then restart WinDaq. If your program still sees no new data, make sure that that for a device on port COMxx it contains (using a leading 0 for one-digit port numbers):
.DeviceDriver = "DI1xxNT.DLL"

If you are using Dataq.ocx, exit your program. Press Ctrl+Alt+Delete and start Task Manager. On the Processes tab, highlight any process named DISCN1xx and click End Process. Unplug and reconnect the device before restarting your program. If the problem persists, exit your program, start WinDaq to confirm that the device still works, and exit WinDaq before running your program.
If your program still sees no new data, make sure that for a device on port COMxx it contains (using a leading 0 for one-digit port numbers):
.DeviceDriver = "DI1xxNT.DLL"
.DeviceID = "COMxx 155 38400"
If the problem persists, in C:\WINDOWS\TPDATAQ.INI in the [Global] section use a text editor to insert the line:
debug=1
The next time your program fails, search your computer for the newest DataqSDK.log file and attach it or paste its contents into your reply.
Apr 30, 2015
Eduardo Alatorre wrote
Another question, the data acquisition module DI-155 has 4 digital inputs, but also have other functions (Event, record, rate and counter), my system monitoring stops without explanation, and the LED remote signal is on when this happens, I want to know what it means that the remote signal is on ?, and would that affect the behavior of my digital inputs? I read in the user manual for my digital signals only function as digital inputs needed to activate the channel 9, but did not quite understand this point.
Apr 30, 2015
Ken agent wrote
The Remote LED should be on whenever the button is pushed, or when the Evnt/DI0 inputs are shorted together or the + input is less than 1.4 volt above the - input. If it comes otherwise, that would indicate that its microprocessor firmware has crashed. Unplug and reconnect to fix that. All four digital input bits show up in data for Ch9. Ch10 acquires the transition frequency on the DI2 input, and Ch11 counts transitions on the DI3 input. In WinDaq acquisition Edit Channels (Edit Enabled Channels in the latest version), check the numbered boxes in the top row to enable acquisition from those channels.