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"Write Buffer is Empty" Error Message

Hello All,

 

I am using  a MC, USB-2416-4A0, controller and DasyLab V11.   I am inputting 14 analog temps (TC Type T) and 6 voltages.  I have two PID controlled analog outputs.  I utilize a variety of displays. 

 

When I run the program it launches and presents the first set of values on the displays.  As soon as the displays change to real values the program reports out an error, "Write Buffer is Empty".

 

I have searched both the MC and DasyLab Libraries and this forum's historical posts with no solution.  Any suggestions as to what I should do to eliminate the error.

 

Also, if it is not asking too much... How do you get the clock display to display in 12hr format. All we can get is military time format.

 

I have attached a copy of the program.

 

Thanks,

 

Bill...

Head Cook

Southern Smoke BBQ Team

Auburn,Alabama.

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Hello Smoker,

you get the error message "Write Buffer is Empty" from MCC Analog Output module "Dev1-Ao0"? If yes please check if you use a timer based analog output mode (fixed output rate) for your device. This type of output make not sense for an PID control. You should use an software polled analog output mode with blocksize 1.

"... Also, if it is not asking too much... How do you get the clock display to display in 12hr format. All we can get is military time format. ..." - Do you means the clock example worksheet for 12hr format?

22126iA0AC0576ABA1B6B3

 

Best regards,

MHa

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I believe that this is a known issue, and that Measurement Computing is working on a solution.

 

If you change the Output clock to a software clock, rather than a hardware clock, you should be able to run continuously.

 

The BEST way to resolve this is to work with the hardware manufacturer, Measurement Computing, as they wrote and maintain the DASYLab V11 driver.

 

You can reach them at 508-946-5100 x2

 

 

Measurement Computing (MCC) has free technical support. Visit www.mccdaq.com and click on the "Support" tab for all support options, including DASYLab.
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