Chr(0)

[maxpic55]

Hello I want to send to serial port with class rs232 the value equal to 0 that in Visual Basic 6.0 it was a char like this "

 

[MTSkull]

Do you have the specs that the item you are talking to requires. Then you can look and see what the command terminator is and send that. Also you will have to convert to Hex Coded Ascii more then likely.

Other wise...
Chr(0) = Null (ascii standard).
",,i" = chr(46) & chr(46) & chr(105)

MTS

 

[MTSkull]

Maybe you want chr(48) ? which = an ascii "0"

 

[MTSkull]

Hate to keep posting like this but, for refrence...

www.asciitable.com/

Has the entire ascii char set in dec hex oct and HTML to 255 chars.

I use it so often I printed it out and posted it on the wall. Comes in handy for XL Macros.

MTS

 

[maxpic55]

Hi MTSkull,
Thank for reply,
I want to send value 0xFF in hex but when I convert in Ascii I have a problem beacuse it takes a value equal to null and the program cant work.
maxpic55

 

[MTSkull]

0xFF is the last char on the Ascii chart, Null is 0x00. If this is the stop char then you should not need to read it into ascii. Just find it so you know to stop reading the line, but do not convert it because it is not supposed to be a real character just the Stop Flag.

MTS

 

[splice]

use: ChrW(&HFF) and ChrW(0)

 

[dynamic_sysop]

ChrW is a bit of a VB left over , using .NET you can accomplish the same with ...

MessageBox.Show(Convert.ToChar(&HFF))

or ...

MessageBox.Show(Convert.ToChar(Integer.Parse("FF", Globalization.NumberStyles.HexNumber)))