Also, just wonna make sure that whether the serial port I am using is compatible. Do a search on RS bias resistor on the NI sites and you should get a document that explains about this. On software configuration, here is the list. Now I have a strong suspicion that the Eurotherm driver you downloaded was actually developed and tested with a controller with RS interface. I hope this information will help you make your system work. Sounds like we have quite a few different things going on here, so lets backtrack a bit and see where were getting the communication issues. Message 1 of 6.
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Message 3 of 6. The unit I got from the client to do some testing in our office appeared to be defect, and testing in the factory installation is a hassle.
I encounter a problem with my project.
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. This was not possible to get working although I didn’t have a chance to go very deep into debugging with this.
Rolf Kalbermatter Averna BV. Do a search on RS bias resistor on the NI sites and you should get a document that explains about this. We primarily host it for convenience.
Message 2 of 6.
Or should I buy the serial protect from NI? I found that terminal registor cause significant voltage drop, so I do not use any termial registor. Also, I am thinking if the issue is due to the incorrect serial port I am using.
Labview Driver now Available for Eurotherm nanodac
Message 6 of 6. Most Active Software Boards: What did work is to replace the RS interface in the controller with a RS module and connect it to an RS port on the compactFieldpoint. Thanks for the reply The loopback works well and the LabVIEW driver I am using labviwe directly downloaded from NI website et24xx so it can be assumed that the problem is not on the code?
Also, the et24xx driver maybe shouldn’t be eurotjerm to work.
The Eurotherm controllers can be labviwe with either RS or RS interface it’s a module that can be replaced inside the controller. Applications Engineering National Instruments. Instructions for that are here: On software configuration, here is the list.
Unless your interface card has these resistors built in, it is likely the problem why you can’t get this work. Message 1 of 6.
Eurotherm nanodac Controller – Ethernet Driver for LabVIEW – National Instruments
However time and other constraints did labvidw allow us to debug that deep enough to make it work as a full RS connection. Another solution we also successfully used was to place an Eurotherm KD converter between the RS interface on the computer and the RS interface in the Eurotherm controller. Also, just wonna make sure that whether the serial port I am using is compatible. Message 4 of 6.
Message 5 of 6. Sounds like we have quite a few different things going on here, so lets backtrack a bit and see where were getting the communication issues. I hope this information will help you make your system work. Can anyone give me a hand? Is it really necessary for me to use the serial port from NI instead of using random brand serial port?
With this configuration, I made it work. Some of the NI plugin boards do have programmable bias resistors that can even be switched on and off through a VISA attribute node if I’m not mistaken. Now I have a strong suspicion that the Eurotherm driver you downloaded was actually developed and tested with a controller with RS interface.
I also spent quite a bit of time for setting up Eurotherm RS Comm.