Eurotherm 2416 communication problem in LabView 8.5.1 via COM1

[joe ziff]

I have downloaded the latest version of a driver ET24xx v from NI site, and it is not working. I am getting Time out error from VISA. I think, the controlled is hooked up properly on my COM1 port. Visual Basic software is able to reach him and to communicate with the controller.
Please help.
Joe
My email is: g e m b a r @ t p r l dot co m (slightly changed for spammers)

[pBerg]

Howdy Joe,

Several things can cause a VISA timeout. Improper message termination most frequently causes timeouts. Also, which VI in the E24xx driver package do you try to run that times out? After extracting the ET24XX driver to your labview\instr.lib directory, you should be able to access its examples by navigating to Instrument Drivers»ET24XX»Examples in the Functions palette. (Make sure to select the proper COM port on the example's front panel).

Going back to the issue of improper message termination--verify that each message you send to the instrument has a termination character such as \n, \r, \n\r, etc.

Let us know!

[joe ziff]

I have installed the driver into the library I tried all examples, and I spent 2 wasted weeks to find out why it is not working. I have been using serial communication since 1990 and Iwrote  several drivers in all kings of languages myself, so I am not a beginner. Have you guys ever tried to run this ET24xx on Labviev 8.5.1 to talk to Eurotherm 2416? Was it working?
Thank you anyhow,
Joe

[pBerg]

Howdy Joe,

Which VI in the E24xx driver package do you use that times out? Where in the code does it time out? I'd be interested in seeing a NI Spy capture log of exactly what's happening between the instrument and LabVIEW. This KnowledgeBase article describes the procedure to do so. Then post back to this thread with the log attached, and we'll be glad to review it.

Look forward to hearing from you!

[joe ziff]

Hi pBerg,
This is a spy capture fileI from the et24xx driver.
Thank you for your time. Actually we already wrote a new,  much simpler driver for the Eurotherm 2416 and everything is working now. We are a small company, and if we were waiting for NI specialists to find what's wrong with their "certified" driver, we would go bankrupt.
Thank you, anyhow.
Joe

[ka.hero.]

Hi Joe,

I am facing the exact problem like you, is there a slight chance that you still have the code for your fixed driver?

Best regards, Karl

[rolfk]

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@ka.hero. wrote:

Hi Joe,

I am facing the exact problem like you, is there a slight chance that you still have the code for your fixed driver?

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These "me too" messages are seldom helpful, especially if you attach to a thread that has been more than 13 years idle. This is often referred to as resurrecting long death threads.

In addition the VISA timeout error can have many different reasons, so your "me too" is very seldom the same reason than someone else's timeout error.

Create a new topic and provide more info than just that you get a timeout error. What setup, what version of software, what hardware and what you have exactly tried to do. Despite that the previous poster was dissatisfied with the driver I know for a fact that it does work but there might be possible difficulties with certain hardware setups, but since most people don't have the same hardware setup as you, it will be up to you to do some real debugging.