ASCII to decimal conversion function

[dannyrap]

I use LabVIEW 6.1
I'm reading an instrument using RS-232 and the "Serial Port Read.vi"
The vi reads 3 bytes in ASCII format I need to convert it to decimal or hexadecimal in order to calculate the instrument output.
It is possible to do it offline (when the vi isn't running) by rigth clicking on the indicator connected to the "string read" output of the "Serial Port Read.vi" and changing the display to "Hex Display" but i need to do it while the vi is running.
Can someone help
Thnxs a lot
Danny

[Ray.R]

Why not simply add another display which has the property "Hex Display" already set. You could put the display next to the ASCII one and see both as the vi is running.

-JLV-

[LesHammer]

Look under:

Functions
All Functions
String
String/Number Conversion

Les.Hammer@CompleteTest.com

[dannyrap]

Dear Joe

Thanks for your reply.

I didn't explained myself well.

The data that I read from the instrument comes in ASCII format. If I leave the indicator in "normal display" then what I see are 3 numbers, letters or simbols - representing the 3 bytes that were read.
I need to convert this numbers/letters/simbols to their hexadecimal or their decimal representation and then to convert this representation to a number to be able to perform some calculations on the recieved number.
In other words, I need a function that converts ASCII string to hexadecimal or decimal. I know that there are tables for this convertions (and one also exists in the LabVIEW help) but the question is if LabVIEW has a function that performs this task.
In the Function >> St
ring >>String/Number Conversion I found only conversions from decimal or hexadecimal string to number, but not from ASCII string to hexadecimal or decimal string or to number.
I hope now my problem is more clear

Thanks for your help,

Danny

[dannyrap]

All
I've succuded to peform my task using the "String to Byte Array" which is located at the: Functions>>Numeric>>Conversions palette.

Thanks all

Danny

[Little_Helper]

Hi

I need to convert from DEC to ASCII, do you know how I can do this?

Simon

[altenbach]

---

SCMAJA wrote:

I need to convert from DEC to ASCII, do you know how I can do this?

---

Your question does not make a lot of sense. "DEC" (I assume you mean decimal) is already a number shown as formatted ASCII characters, so there is no conversion needed.

Please tell us what you have and what you want. Do you possibly have a numeric type that you want to format?

[Little_Helper]

Sorry if I wasn't specific enough.

I want to convert from ASCII code to Decimal code

Take a look at this:

Hex	Oct	Dec	ASCII	Msg
00	000	0	NUL	—
01	001	1	SOH	GTL
02	002	2	STX	—
03	003	3	ETX	—
04	004	4	EOT	SDC
05	005	5	ENQ	PPC
06	006	6	ACK	—
07	007	7	BEL	—
08	010	8	BS	GET
09	011	9	HT	TCT
0A	012	10	LF	—
0B	013	11	VT	—
0C	014	12	FF	—
0D	015	13	CR	—
0E	016	14	SO	—
0F	017	15	SI	—
10	020	16	DLE	—
11	021	17	DC1	LLO
12	022	18	DC2	—
13	023	19	DC3	—
14	024	20	DC4	DCL
15	025	21	NAK	PPU
16	026	22	SYN	—
17	027	23	ETB	—
18	030	24	CAN	SPE
19	031	25	EM	SPD
1A	032	26	SUB	—
1B	033	27	ESC	—
1C	034	28	FS	—
1D	035	29	GS	—
1E	036	30	RS	—
1F	037	31	US	—
20	040	32	SP	MLA0
21	041	33	!	MLA1
22	042	34	"	MLA2
23	043	35	#	MLA3
24	044	36	$	MLA4
250	45	37	%	MLA5
26	046	38	&	MLA6
27	047	39	'	MLA7
28	050	40	(	MLA8
29	051	41	)	MLA9
2A	052	42	*	MLA10
2B	053	43	+	MLA11
2C	054	44	,	MLA12
2D	055	45	–	MLA13
2E	056	46	.	MLA14
2F	057	47	/	MLA15
30	060	48	0	MLA16
31	061	49	1	MLA17
32	062	50	2	MLA18
33	063	51	3	MLA19
34	064	52	4	MLA20
35	065	53	5	MLA21
36	066	54	6	MLA22
37	067	55	7	MLA23
38	070	56	8	MLA24
39	071	57	9	MLA25
3A	072	58	:	MLA26
3B	073	59	;	MLA27

Like if I want to have the ASCII code 2 in Decimal then I get the number 50, if I want ASCI code SOH in Decimal I get 1, do you know what I mean?

Simon

[altenbach]

Just typecast it to a U8 numeric.

Message Edited by altenbach on 11-15-2007 12:07 AM

[ehsanelahimirza]

where i can find this u8 conversion.

i m unable to find