Emerson USB Fieldbus Interface, User Manual

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Appendix F
Remove pre-release driver versions on a Windows
XP operating system
1. Click
Start
>
Control Panel
>
Add or Remove Programs
.
2. Select
770 USB Serial Converter Drivers
from the list, and then click
Change/
Remove .
If 770 USB Serial Converter Drivers is not on the list, proceed to Step 4 .
3. Follow the prompts on the uninstallation window, then click
Finish
.
4. If necessary, uninstall the drivers using Windows Device Manager:
a. Launch Windows Device Manager (
Start
>
Run
, type
devmgmt.msc
, and
click OK ).
b. Expand Ports (COM & LPT).
c. Connect the USB Fieldbus Interface to the computer through the USB
port and wait a few seconds to see if 770 Fieldbus Interface (COMxx)
appears on the list. If it does not, proceed to
Step 5 .
d. Right-click 770 Fieldbus Interface (COMxx) , and select Uninstall .
e. Click OK to confirm the driver removal.
f. Expand Universal Serial Bus controllers, right-click
770 Fieldbus Interface
,
and select Uninstall .
g. Click OK to confirm the driver removal.
5. After removing previous driver versions, install current drivers manually.
Follow the procedure in Appendix D .
6. After installing current drivers, open Windows Device Manager.
7. Expand Ports (COM & LPT), right-click
770 Fieldbus Interface (COMxx) , and
select
Properties
.
8. From the Port Settings tab, select
Advanced
.
9. From the BM Options section, set the Latency Timer value to 1 and click
OK
.
May 2014 User's Manual
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