Send the ASCII string as command to device Modbus Ethernet

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• How to convert the Ascii string containing hex to hex string info?

  Dear all,

  I am busy doing a control/reading program for pumps of ISCO.

  Right now I'm in trouble with to send orders for PUMPS in HEXADECIMAL. When I use a CONTROL to the STRING in HEX display, everything works fine (when I manually write down the command in the control of the chain).

  Exist it a couple of pieces order: string Destination, length, ordering, Checksum. I'm doing a sup - screw that automatically calculates the checksum (modulo 256) and adds it to the string. Everything is going well: first of all, I shared the ascii bytes command and I calculate the checksum and add as ASCII HEXADECIMAL value to the chain of command. Also a CR (= 0d) is added. Now the whole string must be converted to hex. The string contains the right nummers HEX, but they are in ASCII format. Here was I feel worth it, I don't know how to do it!

  So to summarize:

  I have an ascii string that contains the values HEX (for example 315230303652454D4F544531420D) and it must be converted to a HEX string (for instance 3152 3030 3652 454 4531 420 4F54) for the pump of the ISCO can understand the command.

  The VI is attached.

  Thank you in advance,

  Bio

  Bio,.

  This should do what you want.

• HOW DO I SEND THE TEXT STRING TO THE BROWSER

  There someone now how I would go about sending a text string in a program in a web browser

  Please please please PLEAAAAAAAUSEEEEEEE help me someone

  I think that EventInjector should work for this case. Do a search in the forum for EventInjector and take a look.

  Scott

• How to send the long string of CFCs without error?

  I posted a different question on this subject, but maybe it was worded too complex, because no one answered. Is there anyway to get a large amount of text in a cfc? If I put in a string of javascript and try to send it, I get a URi too long because the function is transformed into a http GET method and transformed in a url string which obviously does not work because of the limit on the length of the URi.
  
  Any ideas? A way to call a cfc without using a get? This has been hesitating to my mind for days now - it seems to me there should be a way to get long chains of a cfc. Right? Isn't it? I hope so!! ;)
  
  Thank you
  Dave

  I found the setHTTPMethod parameter used during initialization of a cfc to cfajaxproxy - you can change it to a POSITION which obviously solves the problem. Adobe, mark POST by default as AJaxCFC, CFAjax, etc.! Maybe theres some reason to have default GET, who knows...
  

• SMU-8431/8 RS-422 serial card sends the wrong number of bits

  I use a card series SMU-8431/8 RS-422 configuration for talking to a camera that has the speed of transmission parameters following 38400, 7 data bits, 1 stop bit, odd parity. I confirmed that the device certainly has these settings I can communicate with him using a separate Linux PC.

  When I try to use the serial port of EITHER the device does not react. Then, I connected the serial port OR on my Linux PC to see which sent the port NO. It is garbage. Nonprinting characters, control commands and the other characters are converted (for example I send the ascii character '1' and get the ascii character 'a').

  I made sure to add the terminating resistor 120 ohm NI RX + RX-lines and as mentioned in other posts on these forums, but it is only for the reception and did not solve the problem.

  I put a scope on the TX + and TX-lines from the map OR track seems reasonable that sent bits is correctly 38400 and voltage levels are correct moving between +/-3V. What I've noticed, is that the map series, NEITHER seems to be send to the 11 data bits. I expect 10-bit (1 start bit, 7 data, 1 parity, and 1 stop). I changed to 8 and then 6 bits of data and the total number sent passes to 12, then 10, respectively.

  I get the same behavior if I use Labview screws, Panel VISA for the port of MAX, or to remove the software NOR entirely and use Hyperterminal. This would seem to indicate that the problem is something in the settings of low level on the card itself.

  I tried a second SMU-8431/8 card and the same results, this isn't a fault map (may be two defective cards, I guess!).

  Any ideas?

  Many thanks in advance,

  Ian

  Discovered it was: used a scope to view the track both the Linux PC and the serial port OR to compare. The trace OR was significantly longer than the Linux. When I measured the width of the track OR whole, it worked to have a frequency of about 33 000, or much less that the 38400 assigned him. I was getting the wrong characters every bit of data from the port because NEITHER was out of sync with the Linux PC.

  I increased the port baud rate NOR and found that setting in 45 000 made it align correctly the Linux PC and I now the communication between the two devices.

  For the record, I don't have the terminating resistor 120 ohm or the anchor line to be included in the cable series between ports OR and Linux.

• Insert variable in the text string

  Hi, can someone help me insert variables in a text string? I use the "base series writing and Read.vi in labview.

  I need to send the following string to the serial port:

  Normal 0 false false false fr X-NONE X-NONE MicrosoftInternetExplorer4 / * Style Definitions * / table. MsoNormalTable {mso-style-name : « Table Normal » ; mso-tstyle-rowband-taille : 0 ; mso-tstyle-colband-taille : 0 ; mso-style-noshow:yes ; mso-style-priorité : 99 ; mso-style-qformat:yes ; mso-style-parent : » « ;" mso-rembourrage-alt : 0 cm 5.4pt cm 0 5.4pt ; mso-para-margin : 0 cm ; mso-para-marge-bottom : .0001pt ; mso-pagination : widow-orphelin ; police-taille : 11.0pt ; famille de police : « Calibri », « sans-serif » ; mso-ascii-font-family : Calibri ; mso-ascii-theme-font : minor-latin ; mso-fareast-font-family : « Times New Roman » ; mso-fareast-theme-font : minor-fareast ; mso-hansi-font-family : Calibri ; mso-hansi-theme-font : minor-latin ; mso-bidi-font-family : « Times New Roman » ; mso-bidi-theme-font : minor-bidi ;}

  -$$ INPUT1SMSPHONE = numbers1, telephone2, phone3

  -$$ INPUT1SMS_WSEC = 5

  -$$ INPUT1SMS_DATAON = MESSAGE TYPE SMS HERE

  How to do a vi with numbers1, telephone2 phone3 and TYPE SMS MESSAGE HERE as variables and send it to the serial port?

  If someone could make an example vi that would be fantastic.

  Kind regards

  Mark

  Thank you for your quick response. Your example is perfect thanks mate.

  See you soon,.

  Mark

• concatenate a string in hexadecimal with ASCII string

  Hello

  I'm new to LabView and I am building an application that talks to a camera. I'm stuck on something that seems simple enough: I need to concatenate a constant string of hexadecimal values (040D 0002...) with an ASCII hexadecimal string (00D0A10F, for example), which is emerging from a block 'number in string Hex. ' The output must be a string of hexadecimal values (040D 0002 00D0A10F) and go to the camera, but the block CONCATENATE transforms the ASCII string in hexadecimal display too, so that each character is converted to two hexagonal symbols...

  I found a very old post where someone claims that they have found a solution; Unfortunately, it is not displayed...

  Does anyone have an idea, how to do?

  Thank you very much!

  Michal

  Hello

  Give it a try - it converts an ASCII hexadecimal characters in ascii character string.

  So, if you view the output as hex, she must concatenate correctly with your other data.

  Dan

• Wait signal generator complete the scan list before sending the next command

  I am writing a program for Agilent E4421B signal generator scan to list between a range of frequencies (ramp up to the maximum frequency and then back down to the original frequency) specified. The signal generator has only a list of 401 points, which is a problem when I want to wash over a wide frequency range. To work around this problem, I would like to perform several scans of list in a row. However, I can't figure out an effective way to "say" the program to wait until the previous scan has finished before sending a new order of scanning for the signal generator. Any ideas? For reference, I use Agilent ESG drivers series LabVIEW.

  Thank you!

  If you use standard VISA calls, I would say just that send the scan command, but add; * mutual fund? (operation ends?) make a query.  Then, run a VISA to read what's coming.  This indicates to the device to send a 1 to the output buffer when the scan is complete (or just about any other operation, also).  As you are waiting for a response, your computer will wait the amount of time to wait so he could see a response, it is not less, your way with the exact amount of time - no more - to be actually taken.

  A few warnings:

  (1) make sure that the time-out is longer than the length of most slow scan.

  (2) there are variants of the '1' being returned.  I saw '1', '01', and even "1.00E + 3" therefore to allocate more than one byte to read."

• Send the command to laser sensor via a serial port RS232

  Hello

  I have a sensor of moving Laser of OPTEX FA Co., LTD. with a Communication Manual.pdf file attached. I modified the sample base series write and Read.vi of LV to send the command to the probe in order to receive a response. However, LV always returns an error on my VISA Write.

  In short, the structure of command for the sensor must have a form like this

  STX-command command-space-1 2 - ETX

  (more can be see the manual on page 3 or 18 of the .pdf file)

  where

  -STX: code showing the head of transmit data (02 H)

  -Command 1, 2: could be refers to table 1, 2 and 3 of the manual.

  -ETX: code illustrating the completion of data transmission (03H)

  For example, if I want to ask the sensor to send the data from A sensor head, the command must be

  STX-ABLE () A - ETX

  (20H) space is shown as ().

  I tried to send a string HEX (02 - 4 d 454153555245-20-41-03) for this command to the entry VISA, but all I get is ERROR.

  I enclose with this thread my vi and a printscreen of the ERROR.

  A lot a lot of appreciation for any help from any of you.

  I have my LV code can run successfully. He can read the COMMAND and return measurement data. The last time does not playback VISA because I used a cable RS232 to opportunity, and someone operated two pins (2 and 3) for another application.

• Using Firefox 4 and Windows 7. Whenever I have to start Firefox from a shortcut to a Web site, what happens with the following error "there was a problem sending the command to the program". The requested site is loaded after that. without any problem.

  Using Firefox 4 and Windows 7. Whenever I have to start Firefox from a shortcut to a Web site, what happens with the following error "there was a problem sending the command to the program". The requested site is loaded after that. without any problem.

  If a shortcut is used while Firefox is already open the error will not occur.

  For me, the problem was the FoxClock extension. Once I disabled it, the problem was gone.

  Hope this helps.

  Olivier

• Why my instrument sends the response to the last command sent?

  Hi so I'll try to schedule this RLC SR720 via a USB/GPIB interface. I can communicate with the machine and it does almost what I want, but this oddity and I suspect I'm missing something basic. The manual can be found here.

  It meets the common as GPIB commands * IDN? (specify the instrument) and * IFC (clear device), so I'll use those. I want to use myself is xall?, which requires just the currently measured data.

  The problem is that it seems that the machine always "blame" a late order. By example, if I ask * IDN? with NI MAX, it returns what it should. However, if I can ask xall?, it always returns the same thing as * IDN?, until I do xall? Once again, then it returns to what it should:

  -> * IDN?
  
  <->
  
  -> xall?
  
  <->
  
  -> xall?
  
  <->

  Even if you go the other way:

  -> xall?
  
  <->
  
  -> * IDN?
  
  <->
  
  -> * IDN?
  
  <->

  As you can see, it is "late" a single command.

  The manual says:

  Similarly, the SR715/720 has a 256 character
  output buffer to store the output to the host
  the computer is ready to receive. If the output buffer
  It fills is cancelled and an error reported. The
  GPIB output buffer can be cleared using the
  Clear device universal order.

  So I thought I would try the clear control device (* IFC) before entering a new order, but it doesn't seem to work:

  -> * IDN?
  
  <->
  
  -> * IFC
  
  -> xall?
  
  <->
  
  -> xall?
  
  <->

  Does anyone have an idea what might happen? The manual says to use the line as the terminating character, so I'm, but it seems not to matter.

  You have everything waiting between your writing and reading?  Have you tried to do a reading before your order seding?

• Get the Ascii code of a string

  Hi all

  I need to get the ascii code of a character, and I can't find the appropriate function to do.

  For example, I get a string like this :--> 'X 6T8OP' and I want to turn it into this: 54 84 56 79 80 32 88

  Note: I'm using Labview 8.2

  Well thanks to all!

  Salvation of output,

  Use the function "string into byte array.

  Mike

• (1) acrobat cannot send the DDE command. (2) adobe air does not download the latest version

  (1) adobe acrobat pro can not open and always send message fatal errow "Acrobat cannot send the DDE command '.

  (2) one.    Adobe Acrobat cannot open because adobe air cannot successfully download the latest version
  Reader adobe b. cannot create PDF because adobe air cannot successfully download the latest version

  Hello

  ·         What operating system is installed on your computer?

  ·         Did you do changes on the computer before the show?

  Question 1: Acrobat could not send DDE command

  Try to launch acrobat in safe mode, follow the steps:

  a. press on and hold the SHIFT key and double click on the acrobat icon and open a pdf file.

  b. If it opens without crashing after about 15 seconds, then you have a faulty plug in, locate and remove it from your plug-ins folder.

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  You can try to Uninstall and reinstall the program.

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• Using Autodesk Architecture 3.3 and opening a working file, I get the error message error "there was a problem sending the command to the program".

  When using Autodesk Architecture 3.3 and opening a working file, I get the error error message "there was a problem sending the command to the program". What does that mean? At the same time (or nearly the same time) trying to create a pdf from a drawing file is suspended the program autodesk. These two worked before.

  Hello

  The question you posted would be better suited to the Forums from Autodesk. I suggest you post here for better support.

  Here is a link:

  http://forums.Autodesk.com/

• Error message Windows Live Mail to write links - "there was a problem sending the command to the program".

  I get an error message when I click on a link in Windows Live Mail.  A pop up, said "there was a problem sending the command to the program".

  Post Windows Live questions in the appropriate forum found here:
  http://windowslivehelp.com/