"Write Buffer is Empty" Error Message

Question

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.
Attachments:
Smoker 3.DSB ‏102 KB

Answer 1

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?
Best regards,
MHa