Ravi0709

Hi.... My project has many(500 to 800) controls and indicators which are spread over many individual vis. I wish to control all these vis from a single (main) vi. I am using "call by reference" technique, which is the best way (I hope !!). To handle these controls easily I'm using clusters. I shall control this main vi from Python. I know how to access each individual LabVIEW control terminal from Python. I kept all these control and indicator terminals in side clusters. Now, I'm able to read and write whole cluster at a time, which is not my requirement. I want to read or write only one cluster element at a given time. I tried a lot but I'm unable to work it out. Pls...help me to solve my problem. I have one more doubt, Instead of keeping all controls and indicators in main vi directly, I'm simply merging into clusters. This merging process (into clusters) takes place in individual vis. Is this step increses/decreses complexity of model ?? We want to keep the code as less complex as possible. Thank you, Ravinder

Hi.....I got it now..... Thank you, Ravinder

Hi....this is the code I'm using......I'm not providing any signal to "UPDATE*", shall I do it..?? Thank you, Ravinder

Hi Tim.... I can't provide u co-ordinate file. But, I'm giving u sample points.... Time (sec).........Voltage (volt) ............................... 131.000................9.0 131.001................4.5 134.000................4.5 134.001................8.0 ................................. Pls...give me any idea if u have.... I'm trying to use "wait(ms)" function after sending every voltage value over analog output port. With this procedure I'm not getting exact shape of the waveform but I'm able to get exact time periode. Thank you, Ravinder

Hi..... I'm trying to generate a arbitrary signal, which has a duration of 5 to 6 mins. My signal is not a periodic signal (no phase, frequency etc.), it's generated only once whenever required. I have around 70 to 80 (time,vlotage) co-ordinates. I'm using "Simulate Arbitrary Signal" express vi. This vi generating wave form of exact shape but not in duration. When I send this generated signal onto an analog output pin(nr. 22) of "NI PCI 6052E" interface board and observed output on CRO, duration was about few micro seconds. When tried to increase the duration, it's happend but for few more micro secs. I did all this work on a real-time target. I need help regarding this matter. Should I program any on board components of "NI PCI 6052E" to get exact duration of signal..?? My requirement is "once I start the vi, it should generate a voltage signal over a period of 5 to 6 mins. sothat, I can observe it on CRO". I work with LabVIEW 8.5. Thank you, Ravinder

Hi...ned, Thank you very much......what you have understood was absolutely right.ur solution works correctly for my problem. Thank you...... Ravinder

Hi.....ned, Thank you very much....for ur reply. Initially I tried same but with Channel APIs. It didn't work properly. After ur reply I tried with frame APIs. Now It's working fine. Really... this is the only way to workout ??. No direct way....?? If I want to send more than one CAN message at a time then how to workout with this problem ?? Once again Thank you very much, Ravinder

Hi.... I have created CAN interfaces in MAX explorer using vector dbc file successfully and transfered to RT Target (a Desktop PC converted into RT). When I supplied raw data for each message, these interfaces generate CAN message and directly sending over physical CAN port. I wish to use this generated message internally in code further, instead of sending over physical port. We have a custom checksum generation code (in C). I wish to pass this generated CAN message to checksum code to generate checksum byte. In latter stage, I'll send CAN message and checksum byte together over physical port. My problem is, I'm unable to use the generated CAN message in LabVIEW code further. I need help to access this CAN message. How can I generate CAN message (from raw data) for internal purposes ?? If I posted this topic in wrong place please inform me. Thankyou, Ravinder