Watlow F4 Digital Input (Pause, Start, Terminate)

[Dave3432]

Has anyone had any luck using the digital inputs on the Watlow F4 controller?  Once the profile is running I cant pause, start, or terminate it using the digital inputs.

I've been using the NI drivers and everything else is working but I've hit a roadblock with this.  Any help would be appreciated.

Thanks.

[Dave3432]

Problem solved.

If anyone runs into this problem in the future here is the explanation:

Digital inputs are only toggled from high to low, or vice versa, through a ~5V signal to the proper connection in the rear of the controller.  This connection and related information is listed in the manual.  However, I wanted to do trigger the same response (in order to hold, resume, and terminate) using MODBUS communication.  Instead of trying to write to the Digital In registers (1060-1067), which only configures the 4 Digital In's, write to the appropriate "key press simulation" registers.

They are 1210, 1209, and 1217 respectively.

Regards

David

[kaustubh]

Give me your mail id , i will send you the solution.

we have developed complete software to datalogg, profile programming, trending, PID tunning for Watlow F4 controller (S and D for Both)

[Dave3432]

Wow,

Thank you kaustubh, I wasn't expecting that!

My e-mail is RevDave@cox.net

Best Regards,

David

[klqn]

kaustubh,

Can you email me your program?  thanks in advance.  I am new to GPIB.

thanks

[Song_M]

Hey Kaustubh!

If you would like, we might be able to post your driver on instrument driver network on ni's website for future use!  Thank you! 

[drummaniac83]

Will these commands allow you to programmtically start a previously created profile?  It seems like this would only work for a profile that is already running.  I was hoping to be able to start a previously created profile through labview.

[Song_M]

Hey Drummania!

I believe kaustubh has developed a working driver for the F4, perhaps you could leave your email, and he could send it to you so that you might reference it!  I am not sure if he is still monitoring this thread!

[MicroDirectional]

I read the solution provided to terminate a profile, but I am not sure how to do this. I have tried using the digital input VI for the wlf4 driver, but this does not seem to fix my problem. kaustubh, could you please help me on this? Thanks.

[Sr Test Engineer]

hi

Do you have a solution to control the watlow F4 controller?