Serial Port Mscomm
' Wait for data to come back to the serial port. Do DoEvents Buffer$ = Buffer$ & MSComm1.Input Loop Until InStr(Buffer$, 'OK' & vbCRLF) ' Read the 'OK' response data in the serial port. ' Close the serial port. MSComm1.PortOpen = False End Sub Note The MSComm control can use polling or an event-driven method to retrieve data from the port. Com Ports and the MSComm Control. 14 Jul 2001 by James Crowley. It allows you to establish a connection to a serial port, connect to another communication device (a modem, for instance), issue commands, exchange data, and monitor and respond to various events and errors that may be encountered during a serial connection. That use the. 'The original application, written in VB 6, uses MSComm to open, write, read, and close a connection to PORT 1. New LAPTOP computers do not have a serial port. As a result, a Serial to USB cable is used. Because this cable can be connected and disconnected, how can I associate the old serial port 1 to.
MSComm Control ExampleThe following simple example shows basic serial communications using a modem:Private Sub FormLoad ' Buffer to hold input stringDim Instring As String' Use COM1.MSComm1.CommPort = 1' 9600 baud, no parity, 8 data, and 1 stop bit.MSComm1.Settings = '9600,N,8,1' Tell the control to read entire buffer when Input' is used.MSComm1.InputLen = 0' Open the port.MSComm1.PortOpen = True' Send the attention command to the modem.MSComm1.Output = 'ATV1Q0' & Chr$(13) ' Ensure that' the modem responds with 'OK'.' Wait for data to come back to the serial port.DoDoEventsBuffer$ = Buffer$ & MSComm1.InputLoop Until InStr(Buffer$, 'OK' & vbCRLF)' Read the 'OK' response data in the serial port.' Close the serial port.MSComm1.PortOpen = FalseEnd SubNote The MSComm control can use polling or an event-driven method to retrieve data from the port. This simple example uses the polling method.
For an example of the event-driven method, see help for the OnComm event.There are loads more examples around here, try using the search feature in the upper right corner. The OnComm event for the MSComm control is what you will be most concerned with. Private sub Command1clickDim bytetosend(0 To 1) As ByteDim buffer As Variantbytetosend(0) = &H59buffer = bytetosendMSComm1.Output = bufferDodummy = DoEventsLoop Until MSComm1.InBufferCount 5datain = MSComm1.InputText2.Text = Hex$(Asc(Mid$(datain, 1, 1)))Label1.caption=Hex$(Asc(Mid$(datain, 1, 1)))Thank u very, much if u read this mail today then please reply me today only if u canand not make it possible then give me a reference from which i can query this.Thank uThank uThank u.
Excel Vba Serial Port Mscomm
Hello,I have a temperature monitor that is connected to my computervia RS232 to COM1.(The actual connection is via a COM to USB cable.)Small records of 10 charracters + Carriage-Return are sent per communication.I can receive the data with Hyper Terminal program of XP on COM1.If I could direct the data to EXCEL then I could resume with the data collection.I can try to create a program to write the data in comma separated format in a file but that is not my intention.Is this possible to do without programming?What is the best way to do this?Thank you,Harry Geda. I have tried using the above VBA code to read from a serial port and it works very well but with one small issue: If there is no incoming data, or less data than RecLen, then the 'Get' statement locks up until there is more data available. I have also tried changing to 'binary' instead of 'random' for the filemode so I can read one byte at a time but still have the same problem. Is there some way of checking if there is incoming data available before calling 'get' (eg like the 'kbhit' function in C) or alternatively some way of making the 'get' function time out if it doesn't return within a certain time? QUOTE=Johnw;3548242That code is all you need to answer the specific question asked by the OP, but your situation might be different.Hello. I must thank for this info and code - it has get me close to my solution). Excaktly as you i have excel2003 and runs this in makro.I hope to catch info from an attached GPS in COM18 sending NMEAcodes.
BUT do you have any idea why the code above just finds blank/empty records? So the code doesnt comes in to the central parts.I have tested to take out my GPS and it works just the same way! Also when i change the code to a comport that doesn exist it behavse the same!Why doesnt i hook on the signals at all?? Do you have any idea och thoughts it would be lovely!The gps is a bu353 and have a programproduct sent along with it which is working fine and shows the COM18 code in a window rolling over ghe screen. So there is a signal in the port!Im stuck.Ingvar Sweden.
Serial Port Mscomm
(19 responses) Trying to do something like this If 'Yards' is in column A then copy and paste all the rows to a new book If 'Grass' is in Column A the.(9 responses) I have a user from that is the first part of a mass email script that I am trying to write. What I would like is select one or several checkb.(7 responses) I want to enter information on to the first worksheet, then the code to copy and paste the data to the selected hospital and ward entered in.(24 responses) I have figured out some code to copy all the data from a table, create a new workbook, paste the data and then save the workbook as a CSV as.(10 responses) I have a series of columns for orders on my spreadsheet. The furthest left column contains item numbers, the second column contains the quan.The Holy Grail of Excel Tips $12.60.