I have a NI9074 cRIO with 3 NI9485 with whom I control some electrovales to fill a tank of diffenet gases, at differente pressureand tempoerature, and 1 NI9219 to read the temperature and teh presuure inside the tank I have already developed a program that which allows the tank to be filled at the deiserate conditions, but some during the test, expecially if the test is very long (several days) I have run into several errors related to the loss of communication between my cRIO and the PC.This led to loss of control over the gas input and having too high pressures or temperatures inside the tank.Although there are safety valves , I would like to implement a program in the FPGA of the cRIO that, in case of loss of communication will close all solenoid valves and turn off the heaters aslo if the pc crashed, or in case of some communication problem. I am enclosing a test of code that I have started to make, but it doesen't work, infact if I disconnect the LAN cable ( which connects the PC with the cRIO), or if I switch off the pc, to simulate the communication lost/problemI do not achieve the desired effect, which would be to close all the solenoid valves( trough NI9485). Can some one help me? regards David

You can combine with the occurrence to trigger the reset event if the watchdog expires.

LabVIEW

schedule FPGA action in case of loss/problem on communication

Solved!

Author

Many thanks for your help, i solved my problem..

Thanks

Message 11 of 12

(269 Views)

OK, you had a problem, came to the Forum to ask for help, we gave you suggestions and tried to help, you got a solution that worked.

Please "give back to the Community" by sharing the "solution" that worked for you. Especially if some of our suggestions led you to the "solution". I recommend attaching LabVIEW VIs (or a small demonstration Project) that illustrates how you've implemented the scheduled FPGA action when communication is lost.

Bob Schor

Message 12 of 12

(253 Views)

What do you need our team of experts to assist you with?

Request a quote Find the right product Place an order Get support on a product

How can we help?

Please enter your information below and we'll be intouch soon.

This field is required

Preferred communication method

Email Phone call