Call a command out of an array for a sequence test.

[bh3560]

Hello Everyone,

I am using a test VCR with serial lanc commands for testing tape. I need to set up a test sequence so that the machine will Rewind,Record,Rewind,Play. I need to do the play and rewind over for a loop of 4 cycles. I am going to chart the RF wave form to check the tape performance. I have set up a case structure to do this by issuing a serial write in each case. This works but it is rather messy. I want to set up a command array and index a certain command at a certain time. I am not sure how to go about this since I am a Newbie. I am using Win2K and lab view 7.1. Thanks for your time.

[Ankita]

Hi,

You can use the Get date/time String function to get the current time. Now depending on the time you can index your command array accordingly.

Ankita

[JCFR]

Hi bh3560

   I am trying to control a camcorder using lanc and Labview. Do you mind sharing with me the program that you made and how are you connecting the PC to the VCR?

[AdnanZ]

Hi JCFR,

I am not sure if this is what you are looking for; but would this be helpful:
DV Camcorder Library for LabVIEW & IMAQ Vision

[JCFR]

Thank you Adnan,

   Actually, I need to use Sony's LANC protocol in order to communicate with the camcorder and not firewire 1394. I would like to see a VI which would generate the protocol. The serial output will be done using NI VISA card.

Thanks

JCFR

[AdnanZ]

Hi JCFR,

We don't have native support for LANC. Although, there might be different ways in which you might be able to communicate with the device. Does Sony provide a Software Development Kit (SDK) that has all drivers needed to manipulate (acquire images, change settings, etc.) the camcorder using external software? If the SDK is an ActiveX control or a DLL, you should be able to call it from LabVIEW.