Knowledgebase : Software Interface > Iris > Installation
Yes, you must log as local machine with an "Administrator" user or a user in "Administrators" group.
Yes, you need to install or upgrade your current IRIS software installation to IRIS 2.3 prior to insert your IRIS USB cable in PC USB port.
Yes, your IRIS USB interface if visible from IRIS 2.x as a COM device so you need to set the correct COM port in the IRIS settings to download data from your Dive Computer.

When you plug for the first time your IRIS USB in a USB port, a COM port is assigned to IRIS USB device.

You can check the assigned COM port following this steps:

1) "Right-click" on the "My Computer" icon on your desktop, select "Properties" from the drop-down menu. The "System Properties" dialog box will be displayed.
2) Click on the "hardware" tab near the top of the properties window. Once the properties tab is selected, click on the "Device Manager" button. The device manager will open.
3) Expand the "Ports (COM & LPT)" option. You will see this element:

CP201x USB to UART Bridge Controller (COMx)

where COMx is your current COM port (for example COM3 or COM4).

4) Optionally you can change the assigned COM port to the IRIS USB. Note that, in most cases, the COM port that is automatically assigned by windows will work perfectly well, and there will be no reason to change the COM port. Do not change the COM port if there is not a compelling reason.
If you want to change the port number follow this steps:

4.a) Right-click on the "CP201x USB to UART Bridge Controller" display line and then select "Properties" from the menu.
4.b) Once the properties dialog is displayed, click on the "Port Settngs" tab. On the port settings tab, click on the "Advanced . . .".
4.c) The advanced settings dialog will be shown. Click on the arrow of the "Com Port Number" drop-down".
4.d) Now you can select the new COM port number that you wish to use. Once the new COM port is chosen click on the "OK" button to apply the changes and close the advanced settings dialog.
4.e) Click on the "OK" button of the properties dialog. The device manager will still be shown, but it may not have updated to show the new COM port assignment. Choose "Action", "Scan for hardware changes" from the device manager's menu to force an immediate update.

Now the device manager will show the updated COM port. Once you have verified that the COM port is assigned as you would like, you can close the device manager.




Some users with Full Iris 2.4 installation setup (not upgrade) experience the following message error after downloading starts:

[FD.OK.CL] Error Detail: L = '41' - Error n. [9] - Subscript out of range

This error seems to be caused by a not correct USB Driver installation by Iris Full Setup.

To resolve this issue please:

1) Unplug the Iris interface.

2) Download the latest USB driver from here.

3) Unzip the content in a temporary directory.

4) Run the setup (the .exe file).

5) Follow the instructions.

6) Plug Iris Interface in the USB and run Iris Software.

7) Download the dives as usual.

PLEASE, REMEMBER to set the COM port in Iris as assigned to the USB driver. Check this article for details (points 1,2 and 3).
Recently we received several request about issue with IRIS 2.4 and some Mares dive computer models.

IRIS 2.4 is only compatible with NEMO dive computer model family.

If you own previous models (Airlab, M1, M2, Darwin), you must install IRIS 2.3 release.
NOTE. This article is valid for Windows 7 32 bit systems only. Windows 7 64 bit systems are not supported. In order to run Iris or Drak programs on Windows 7 64 bit, you must use the "Microsoft XP Compability Mode" for Windows 7.

Some users with Windows 7 OS, could experience a downloading failure on Drak and Iris programs. This error could depend on a not compatible USB Driver in the installation.

To resolve this issue on Windows 7 32 bit please follow this article.

NOTE for IRIS Users. PLEASE, REMEMBER to set the COM Port in IRIS as assigned to the USB driver. Take a look at this article for details (see the points 1, 2 and 3) or here.
After you install the IRIS 2.3 software, when you plug your IRIS USB cable in you PC USB port, you can experience a "USB Not Recognized" error.

To resolve this issue you can try this optional steps:

1) unplug you IRIS USB cable, wait for some seconds and then re-insert your IRIS USB cable in the same USB port. The IRIS USB is now correctly installed and you receive a confirmation message. If the problem persist, try this step several time.

OR

2) if the Step 1 procedure fails, follow this steps:

2.a) "Right-click" on the "My Computer" icon on your desktop, select "Properties" from the drop-down menu. The "System Properties" dialog box will be displayed.
2.b) Click on the "hardware" tab near the top of the properties window. Once the properties tab is selected, click on the "Device Manager" button. The device manager will open.
2.c) Expand "Universal Serial Bus Controller" option. If the “Universal Serial Bus Controller� option does not appear, this indicates that your computer's
USB interface is disabled. To resolve this problem, see the related documentation that came with your computer to set the correct BIOS setting to enable USB on your computer).
2.d) If you see a "yellow exclamation", "Right-click" this option and select "Disinstall". Then unplug your IRIS USB cable.
2.e) Repeat Step 1.
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