TCP communication with barcode reader Keyence SR-1000 series

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• RS 232 communication with a projector

  Hello! I work in communication with my prjector. The controls are pretty simple, just PWR it for OFF\r PWR to turn off and LAMP? How many hours have the lamp worked \r to land the aircraft. So I just used the example of the writing/reading series with labview, but had a few problems.

  1º) it works but it keeps giving me an error, I can't handle. Is the current operation of visa wait time. I tried it here and all the people say something on the lines of commands, but I put them and set up in the port, so I don't really know how to handle this error. Another thing, it is how can I put \r or 0xD for my end of just the default write command?

  2º) how can I make my request just be an exe that you don't have to press ' EXECUTE ' always to use it?

  3º) my last question is to ask questions about how to manage this thing, I need to read used with the control LAMP lamp hours?, and projector will answer me with something like: LAMP = xxx. How to handle this response to send it via TCP/IP? Should I have to create a new variable or something? I mean, I just need with another application in order to power switch of the projector via tcp/ip and calling hours of lamps via TCP/IP, so I don't really know how to handle. Thanks for all the peoples and let me know if you need more information, I'm not native English sorry for my mistakes.

  Edit: I forgot to put my vi.

  1. you will obviously get a timeout when you send the commands that do not generate a frequency of the instrument. Only do a reading when you send the LAMP? interview and to automatically send \r, set the stop to "0 D" character.

  2. you have the app Builder to create an exe file. In order to make the VI automatically running, go to the properties of VI > execution and check "run then '.

  3. I do not understand. First, you talk about RS - 232 and now you want to convert this TCP/IP communication VI?

• TCP communication

  Hello world

  I would like to use TCP communication to send data of temperature sensors and my USB camera data to another pc client. I tried using remote panels with limited success because of the requirements of bandwidth for the camera. With the help of the attached VI someone help me on how I can use TCP communication in this application. A figure (or reference) would be greatly appreciated.

  Here is a very basic example.

  Do not run it because the code is not functional for communications in parallel. It is only for example. To actually use each method, read in the highest section of the page of code should be replaced with the desired playback method.

  

• SPI Communication with PIC24HJ256GP210

  Hello

  I need make the SPI Communication with hardware PIC24HJ256GP210 in LabVIEW 2010 with NI USB 8451.I want to send 8 bytes data and receive data of 8 bytes of PIC. I'll send data byte-by-byte change the signal of the chip Select (CS). Before you send the data I will send ENQ (mark 3A) to check the status PIC, then after receiving ACK (Acknowledge as A1), I will send the data packet.

  My test procedure indicated below,

  • Setting clock polarity at zero (LOW idle), a second Edge clock Phase) and the clock frequency of 1 MHz to device NI USB-8451
  
  
  • 3 sending data (ENQ) and followed meaningless data byte by byte, also change state Chip Select
  
  
  • No explicit deadline has provided since the sending of the API takes 20msec to run
  
  
  • Receive the acknowledgment of receipt (A1) of the sensor
  
  
  • Send DataPacket [Eg: A5, 03, 02, 00, 00, A6, 2 c, DD] byte by byte, also changing chip select signal
  
  
  • No explicit delay gave between each byte from API takes 20msec to perform sending
  
  
  • Send 8 bytes , which means less data byte-by-byte, and receive byte-by-byte data PEAK
  
  
  • Received all of the data of 8 bytes with an incorrect value

  If please review my test procedure and give your comments if you have worked with SPI or if you have any input for my query.

  Thanks in advance.

  Note: Tie my code with this mail for your reference.

  Kind regards

  Nicolas.

  Hello O_Proulx,

  Thanks for your reply.

  Communication SPI after sending the data we send again meaningless bytes, which equals how many bytes we would like to receive the answer System.So we cannot read the data in the same VI as you mentioned in the code.

  My problem has been resolved. Byte meaningless, I need to send the file HEX .beacuse 'AB' has been developed in this way.

  Kind regards

  Nicolas.

• RS-232 via TCP/IP with LabView

  Hello

  I have currently a standard equipment is read through a RS232 converter TCP/IP hardware.

  On the computer with labview, I use a third-party serial port virtual that data reads the TCP/IP and converts this COM port data pack

  I then read the port COM normally with VISA.

  I would like to remove the third-party TCP/IP software RS232 and LabView read the TCP/IP port and convert to series.

  How could do?

  More details about the hardware and the 3rd party software;

  thydzik.com/Monitor-cms2000-Inverter-via-tcpip-usr-tcp232-E4-rs232ip-Convertor/

  More information on labview here code;

  thydzik.com/log-Solar-generated-to-pvoutput-with-LabVIEW/

  I don't think it's as complicated as you seem to expect. Try the VISA TCP approach. Create a resource of VISA TCP, in raw mode, as explained in the white paper. Take your existing code, replace the COM resource with the new TCP one, remove the configuration of the port series, and it might work. Make sure to close the resource when you stop the program.

  If you want to go with the TCP functions, look at the examples. You open a connection, read and write strings in it, exactly as you would with a serial port and close it when you are finished.

• Problem with getting communication with old instrument GPIB-ENET/100

  Hello!

  I'm trying to get my program in VB.net to communicate with an older instrument (Infratek 305 A, measure of power) via a GPIB-ENET/100 device.

  The manual of the instrument does not say what GPIB standard, it supports, but the instrument is detected by the measurement and Automation Explorer.

  Detected by that I mean that MAE has detected an instrument located on the right GPIB address, but indicated identification is the output measure instrument string

  instead of the name of instrument (as shown for some more recent instruments of Agilent).

  When I run my application, I followed the communication with NISpy.

  Configuration of the device seems to work and I present only once in the program.

  The problem is reading data from the instrument. Whenever I read the data, I get a correct string of the instrument. But the problem is

  I get the same data in two consecutive and all readings first after that I get new data and also these new data are received in two consecutive readings.

  According to the manual of the instrument the instrument generates the data as follows:

  "A row of data ends with CRLF. The instrument can send multiple rows of data. "When all of the data transfer is complete the EOI (end or identify) is sent.

  My endpoint settings are:

  Send EOI to write complete: YES

  Terminate read on EOS: No.

  EOS byte: 2

  8 bit EOS compare: YES

  Define EOI with EOS on write: No.

  How can I configure the GPIB-ENET/100 to work with my instrument?

  Here are som NISpy logs:

  # Configuration #.

  61 ibwrt(UD3, "C0C2C4C8..", 10 (0xA))
  PID: 0x0000113C Thread ID: 0x000008B4
  Departure time: 13:54:43.671 call duration 00:00:00.079
  ibsta: 0 x 100 iberr: 0 ibcntl: 10 (0xa)

  62 ThreadIbcntl()

  PID: 0x0000113C Thread ID: 0x000008B4
  Departure time: 13:54:43.750 call duration 00:00:00.000
  ibsta: 0 x 100 iberr: 0 ibcntl: 10 (0xa)

  63 ibwrt(UD3, "K0K3K5K9..", 10 (0xA))
  PID: 0x0000113C Thread ID: 0x000008B4
  Departure time: 13:54:43.765 call duration 00:00:00.125
  ibsta: 0 x 100 iberr: 0 ibcntl: 10 (0xa)

  64 ThreadIbcntl()
  PID: 0x0000113C Thread ID: 0x000008B4
  Departure time: 13:54:43.890 call duration 00:00:00.000
  ibsta: 0 x 100 iberr: 0 ibcntl: 10 (0xa)

  65 ibwrt(UD3, "F14F18F24..", 11 (0xB))
  PID: 0x0000113C Thread ID: 0x000008B4
  Departure time: 13:54:43.890 call duration 00:00:09.250
  ibsta: 0 x 100 iberr: 0 ibcntl: 11 (0xb)

  66 ThreadIbcntl()
  PID: 0x0000113C Thread ID: 0x000008B4
  Departure time: 13:54:53.140 call duration 00:00:00.000
  ibsta: 0 x 100 iberr: 0 ibcntl: 11 (0xb)

  ### LU ###

  437 ibrd(UD3, "*AC/1.0A480V/...", 1024 (0x400))
  PID: 0x0000113C Thread ID: 0x000008B4
  Departure time: 13:58:52.484 call duration 00:00:00.094
  ibsta: 0 x 2100 iberr: 0 ibcntl: 225 (0xe1)

  438 ThreadIbcntl()
  PID: 0x0000113C Thread ID: 0x000008B4
  Departure time: 13:58:52.578 call duration 00:00:00.000
  ibsta: 0 x 2100 iberr: 0 ibcntl: 225 (0xe1)

  439 ThreadIbcntl()
  PID: 0x0000113C Thread ID: 0x000008B4
  Departure time: 13:58:52.578 call duration 00:00:00.000
  ibsta: 0 x 2100 iberr: 0 ibcntl: 225 (0xe1)

  Hello!

  I don't have the opportunity to test with other controllers.

  However, I found a solution to my problem.

  The instrument should output 4 lines of data.

  L1 - line with comments

  L2 - line with current values

  L3 - line with the values of voltage

  L4 - line with power values

  The first line of the reading stops the instrument of implementation of additional measures.

  The measurements in the instrument began reading the last line of data (L4)

  The problem was that the instrument for a reason any also released a fifth line, which was empty.

  Read this line 5' th stopped the instrument again.

  By configuring the HW to finish reading on EOS, with EOS PMQS, the value byte, I could read the

  buffer of the instrument with a line output instead. This way I could read just L1 - L4

  and the instrument could work again.

  Next time I should read data from the Instr. first of all, I would like to read the empty line, then

  L1 - L4.

  Why the outputs Instr. an additional empty line will be left not resolved.

  My problem is solved.

• RIO crashes when you use tcp communication and web server

  Hello

  my controller cRIO crashes after a short time (usually less than a minute), when I use simultaneously to the web server (to interact with a remote control) and make some tcp communication (using STM 2.0 library) for data logging. Is it a problem of overall performance of the controller, or a problem of band network bandwidth (I'm happy to send some values every 100ms), or a programming problem; in the latter case, what should I do to make the system more stable?

  Kind regards

  PS: I use a cRIO 9022 with LV 2009f2 + RT and NOR-RIO 3.3.0

  Hello

  You can try with a simple while loop + delay instead of loop timed for TCP communication loop.

  Concerning

• Modbus communication with a piezoelectric dynamometer

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