changeto chart x axis unit

[GerdW]

Hi kacco,

did you switch on the context help for an XY graph? It's clearly shown how to wire an XY graph!

I took the values from one of your earlier messages here

[kacco]

ok i used xy graph and solved x scale problem but anohter problem is the buffering and xy chart length problem.I send my .vi and buffering chart lenght (size) problem.How can i fixed this problem maximum size is?

[GerdW]

Hi kacco,

i don't understand your question "How can i fixed this problem maximum size is?" (Sounds a bit like Starwars/Yoda speech )

Which problem? What's your goal? Apart from missing link to input value the vi runs fine for me...

You already give a maximum history size. You could also use some shift registers to replace the buffers... Keep in mind: with growing buffer size your memory consumption also grows!

Message Edited by GerdW on 11-09-2009 03:31 PM

[kacco]

Hi,

the program below uses a chart buffer to mimic the a chart but using an xy graph. My question is that when my program stops running and then i start it again the data are writes over itself. Is there anyway to clear the chart buffer. I have thought of one way of doing it is the use shift registers to clear the buffer after use.

How can i clear my chart buffer when my program stops... whe run the program first time i dont want to  old datas.. simply

thank you...

[GerdW]

Hi kacco,

you wired a "False" constant to the "clear first?" input of the buffer vi. Use a "first call?" (synchronization palette) instead...

[kacco]

First of all i want to describe my network topology and our Project

items. There are two computers and a Ni CRIO 9073 which conncetted each other
with a Ethernet switch. Our CRIO has 3 digital IO modules and two 9870 serial
modules.We use two comp since first computer is  using for programing FPGA & REAL TIME.Other
comp is using for visual communication,post processing and data logging.

Secondly i want to describe our problem: when we use shared

variables over network, they are working so slowly and we are losing data.For
example: encoder data ( for measuring velocity).We can use shared variables in
same Project very fast, however when i use 
same shared variables over network (from CRIO), they are becoming very
slow.

I have to use shared variables over network because  i am using two different industrial PCs so

how can i solve this problem,why they are so slow?

[Vsh]

I would prefer you to start a new thread.

Subject of the thread and your question has no relation.  

[kacco]

if i do this i can but i didnt find button for new topic:))) so i asked here i am so sorry but it si very important...