VAISALA MI70 LINK SOFTWARE FREE DOWNLOAD

The command and output to delete file 1 from the above DIR list are: If none are stored, the command and response are: To get the HM70's attention, the computer might send:. The interchange in such a case would look something like this:. Unlike the case for SEND n, there will be no header to the transmission; the transmission will only include the data lines. The interchange in such a case would look something like this:

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If none are stored, the command and response are:.

However, I am using the unit along with other instruments, and I wanted a single program that could read the data from the separate instruments, display it in a real time plot, and write it all to a single data file. The UNIT command and its output are: The first line of the transmission will contain the number ,ink measurements lnk the type of data being sent. The data lines are as for the SEND n command. Then the program waits for whatever interval the user prescribed for example, 10 seconds and gives another SEND command.

The HM70 doesn't actively listen to its serial connection by default.

Once the HM70 realizes the computer is trying to communicate with it, it responds with: I have had several people working with Vaisala HM70 units contact me about this web page.

One of them, James Brooks, provided a very detailed description of the HM70 commands he has been able to use.

I found it effective to make a loop that sends [CR][LF] to the HM70 and checks the serial port for a response, repeating until the HM70 sends a response. Unlike the case for Doftware n, there will be no header to the transmission; the transmission will only include the data lines. It again reads the output from that, and throws away everything except the most recent measurement, which is the last data line.

In the response, I have given in square brackets the hexadecimal extended ASCII codes for some odd non-printing characters. It does this through a serial port interface. They told me that what I wanted to do couldn't be done, there weren't any commands that could be sent to the HM70 to retrieve the data, and the MI70 Link software was the only possible way to get the data.

This works well for softtware intervals ranging from around seconds. The first line of the output is the DIR information for file 1, the second line lists the type of information being sent, the third line lists the units for the measurements, and subsequent lines give the measurement data in the same format as the SEND and SEND n commands.

Index of /jimenez-group/software/Drivers/Vaisala MI70

I thought that was a strange thing to say. The UNIT command and its output are:. The second line will give the units of the measurements. However, the HM70 can be made to start listening to the serial port again as described in the section " Establishing communication with the HM I think that the first line is number 0, the second is number 1, and so on.

The command and output to delete file 1 from the above DIR list are:. It turned out to be relatively straightforward.

Vaisala Data File Transfer Software MI70 Link / Download

In response to this command, the HM70 will to the serial port two header lines followed by a line for each temperature and humidity measurement it has made for every nth second since it was turned on.

For longer intervals, it may be good to increase the n in the initial SEND n to 10 or more to reduce the number of data lines that get transmitted for each measurements.

Vaieala HM70 will expect all commands to it to be terminated with a [CR]. The data is in a " spreadsheet" format: Basically, they were telling me that there was no way to retrieve the data from the HM70 with a computer, but if I were to use their MI70 Link software, I could retrieve the data from the HM70 with a computer. You may want to change the computer's serial port configuration to recognize that.

The unit was purchased with the MI70 Link software, which can download data from the HM70 or display it in real time. It generally takes between 10 and sets to get its attention.

Mi70 link program for real-time pc monitoring – Vaisala HM70 User Manual

For example, a carriage return will be [CR]. The interchange in such a case would look something like this: The CAL command gives information about the probe calibration the date and who performed the calibration, apparently. I used the following serial port configuration to communicate with the HM