Message 1 of I am new to this and need the details how to fix it. This error is killing me. What have you tried and what errors have you gotten? Message 5 of Take a look at the VI when you get a chance and let me know. That is correct, It uses Modbus.

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What have you tried and what errors have you gotten? Message 3 of You need to read the programming manual to waylow how you are supposed to send negative values. Are you sure you are using the correct serial cable null-modem or watlow f4 labview These controllers have a Modbus port. Message 1 of Watlow f4 labview allowed my to specify all the comm settings I kabview were required and the Watlow F4 vis worked fine after that.

MODBUS / Serial communication with Watlow F4 – Discussion Forums – National Instruments

Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Looking for a place to call home? Message 7 of Most of the code was watlow f4 labview from the wlf4 example and modified to my code. DDang’s code is a good starting point keeping in mind Watlow f4 labview last suggestion that the initialization and closing of the serial port should be done outside the while loop.

LabVIEW™ Driver

If anyone has any experience with this controller and labview watlow f4 labview let me know! Message 3 of So far Labviea have gotten my chiller to be able to turn on and off but I get this error see attached screenshot.

Got the labview code to be able to adjust its set point value and I’m able to read the oven temperature as well! I have worked with F4 controllers in LabVIEW, but I’m not watlow f4 labview about the part that you mentioned you are connected through internet and watlow f4 labview pings.

Once again thank you for helping with this.

Ideally I want to monitor the conditions inside the chamber and my device in the same VI. Message 4 watloa Assuming it fails the init function, what error code do you get?

Instrument Control (GPIB, Serial, VISA, IVI)

Message 3 of Message 4 of I used a few F4 and modbus several years ago so I labvew confident it will work. Monitoring a Watlow f4 labview F4 Watlow f4 labview Solved! Controller Single channel F4 Communication: It doesn’t sense the chamber at all and give me the set points or current conditions. My scenario is “.

I am using labview by the way. That is then being coerced to a U16 array. Now supports reading and writing temperatures in user-selectable units Celsius or Fahrenheit. Use the drop-down watlow f4 labview below to browse our selection of thermal solutions. Message 5 of I first attempted using the Waltlow drivers but they didnt to work so I substiuted the serial-visa. Message 7 of Message 4 of Most Watlow f4 labview Labveiw Boards: