Communicating with Eurotherm via et24xx driver

[Brian_Beal]

You can set up the scan to only scan a certain address range.  If you do that, you will know within a few seconds if it is going to find the instrument.  You can call me if you want, and we can walk through your set up.  440-622-5414

[ALD1]

Hi Brian,

Thanks for your help. The first part of the labview works, insomuch as I no longer get the same error. Now I get a second error (1074001420) in a different place. Do you recognize this error message? Thanks again.

Andrew

[Brian_Beal]

Can you post the entire VI that you are using, and make any settings default?

By the way, you can easily connect to the Eurotherm Modbus OPC server using Datasockets, but without a license it will only run for 30 minutes at a time.

[Brian_Beal]

You can also check out this thread.

[ALD1]

Hi Brian,

Thank you very much for your continued help.

The vi I am using is et24xx from:
http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=E3B19B3E971F659CE034080020E74861

I am not sure what data sockets is, but I want to eventually integrate the eurotherm into another vi.

I checked out the thread you posted, I think I have the updated drivers and the modbus update. But since I don't understand what the error message means, I am not sure where the problem is.

Thanks again,
Andrew

[Brian_Beal]

Andrew-

I'm afraid that I have never used those drivers, and I don't have an instrument to test it with.  Did you try the drivers that were in my other post?

[jjp377]

What version of firmware do you have?

The driver was tested with  V3.06, V4.11.

[jjp377]

According to the Error Message.vi Instrument Driver Code -1074001420 is a Register Address not avilable error.

[ALD1]

Thank you for your help.

Brian-
I have tried the other modbus drivers, with no luck.

jjp377-
What is firmware?
Do you know how to fix a "Register Address not avilable error"?

Thanks,
Andrew

[jjp377]

There are many definitions here some from Wikipedia:

software driver that allows other programs to interact with a computer hardware to work with a particular device. program invokes a routine or commands to the device, and when the device sends data, the driver invokes routines in the program.
firmware updates can improve the performance and reliability, and many times adds basic available functionality of a device.

The issue may be with the configuration VI.

According to the vendor the solution may be NOT to write to address 555 (Manual/Auto Transfer PD. Control) within the (ET24XX Instrument Configuration.vi). Seems this parameter was removed when the firmware V4.XX was released for the 2400 series.

Block diagram view attached: