Help, simple Watlow F4 Control using Labview. Message 5 of Once I set that right, the communication was ok. Controlling a Watlow F4. Most of the code was copied from the wlf4 example and modified to my code.

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Message 6 of Message 9 of If anyone is able to, could they resave the labview sample DDang attached to Labview version? I’m not too experienced with MODBUS I think that is how it communicates according to the manual I have for Watlowbut I have been able to find Watlow F4 drivers for labview and it looks like it’s able to communicate through serial?

If we cannot see “what you did wrong”, we are unable to tell you how to fix it. Message 5 of Our Watlow F4 has r4 serial interface on it.

Watlow F4 Controller

All help is valued, thanks. Message 2 of All TestEquity chambers shipped since mid have the baud rate set at DDang’s code is a good starting point keeping in mind RavensFan’s last suggestion that the initialization and closing of the serial port should be done outside the while loop.

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Most Active Software Boards: Message 6 of Most Active Hardware Boards: Message 3 of Message 5 of Message 4 of I didn’t browse the entire manual, but once you open a Modbus serial connection to the controller you should be able to write to the register at your desired rate.

To clarify on my exact use of this, I have a ton of samples that I want to test their performance at low temperatures.

The driver I am using is the version located at http: That is then being coerced to a U16 array. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Solved: Using Watlow F4 Drivers – Discussion Forums – National Instruments

But if yours has an RS serial interface then you will find it much much eaiser to use the Watlow instrument driver I linked to before and standard VISA serial comunications. I have the Ff4 connected to the net IP Message 5 of I noticed after looking through some posts by other people who are in the same situation, they seem to include a MB Serial Master Query. Message 7 of I g4 getting error codes for function in MAX now. Well I have it set up pretty much exactly as you have it but its still creating a soak step that “does not wait.

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Take a look at the VI when you get a chance and let me know. Message 7 of Checkout my 12 part CAN Blog series.

It is possible that some of the systems with a Watlow F4 have a modbus interface. I have a rs serial interface. I’m trying to read the temp on the F4 using labview, with the controller connected through the internet.

Message 2 of Message 4 of