string subset with binary string

[m4rk]

Hi,

for a Visca cam command I have to convert a numeric input into a string in hex display mode. Then I need the string subset and put a "0" in front of each single number from the string.    e.g. numeric input is 100, the string in hex display mode shows 0064. From this I need to have 00000604. But the string subset function divides 0064 into 00 and 64. How can I put a"0" in front of each single number? Is there any function I can do this?

Thanks for help

Mark

[GerdW · Accepted solution]

Hi Mark,

here's an example:

The "split number" can be replaced by Q&R too...

Basically you have to split your number into nibbles (aka half-bytes). Doing this arithmetically is somewhat easier than to split strings to insert zeros before each char.

Message Edited by GerdW on 07-27-2009 11:20 AM

[m4rk]

Thanks it works great!!

[dh191l]

Hi Mark & Gerd,

sorry i'm very new in program with labview 😞

I try to connect an visca cam with labview and send a hex code like you. 

But i have a problem, i didn't found a vi to connect the cam

could u help me pls?

thx a lot

dietmar

[GerdW]

Hi Dietmar,

for connecting the cam you would rather need a cable than a VI

How do you want to access the cam? Which driver? Which supplier? Did you ask their support?

[dh191l]

Hey Gerd,

first thx for the fast answer,

shure i need a cable to connect the cam

the cam is connected with a usb-cabel,

shure i ask the support, the told me that the cam use the visca protokoll for communication

and send me a technical manuel about the sony fcb-PV 480

i will use the maxxvision Vision-480-usb

http://www.maxxvision.com/de/products/VisualCommunication/USB-Zoom/Vision%20480-USB/product.html

about the driver, see the screen shot pls

best regards

dietmar

by the way - my you speak german?