Endress+Hauser Proline Prosonic Flow P 500 - Page 160

Diagnosis and troubleshooting Proline Prosonic Flow P 500 HART
160 Endress+Hauser
For access
Fault Possible causes Remedial action
Write access to parameters is not possible. Hardware write protection is enabled. Set the write protection switch on the main
electronics module to the OFF position
→  142.
Write access to parameters is not possible. Current user role has limited access
authorization.
1. Check user role →  74.
2. Enter correct customer-specific access code
→  74.
Connection via HART protocol is not possible. Missing or incorrectly installed communication
resistor
Install the communication resistor (250 Ω)
correctly. Observe the maximum load →  196.
Connection via HART protocol is not possible. Commubox
• Incorrectly connected.
• Incorrectly configured.
• Driver is not installed correctly.
• The USB port on the PC is incorrectly
configured.
Refer to the documentation on Commubox
FXA195 HART:

Technical Information TI00404F
Unable to connect to the web server. Web server is disabled. Using the "FieldCare" or "DeviceCare" operating
tool, check whether the web server of the
measuring device is enabled, and enable it if
necessary →  81.
The Ethernet interface on the PC is incorrectly
configured.
‣
Check the properties of the Internet protocol
(TCP/IP)→  77.
‣
Check the network settings with the IT
manager.
Unable to connect to the web server. The IP address on the PC is incorrectly
configured.
Check the IP address: 192.168.1.212 →  77
Unable to connect to the web server. WLAN access data are incorrect. • Check WLAN network status.
• Log on to the device again using WLAN
access data.
• Check that WLAN is enabled on the
measuring device and operating unit
→  77.
WLAN communication is disabled. –
Unable to connect to web server, FieldCare or
DeviceCare.
WLAN network is not available. • Check if WLAN reception is present: LED on
display module is lit blue.
• Check if WLAN connection is enabled: LED on
display module flashes blue.
• Switch on instrument function.
Network connection not present or unstable WLAN network is weak. • Operating unit outside reception range: Check
network status on operating unit.
• To improve network performance, use an
external WLAN antenna.
Parallel WLAN and Ethernet communication • Check network settings.
• Temporarily enable only the WLAN as an
interface.
Web browser frozen and operation no longer
possible
Data transfer is active. Wait until data transfer or current action is
finished.
Connection lost
‣
Check cable connection and power supply.
‣
Refresh the web browser and restart if
necessary.
Display of web browser content is difficult to
read or incomplete.
Web browser version used is not optimal.
‣
Use correct web browser version →  76.
‣
Empty the web browser cache.
‣
Restart the web browser.
Unsuitable view settings. Change the font size/display ratio of the web
browser.
Incomplete or no display of content in the web
browser
• JavaScript is not enabled.
• JavaScript cannot be enabled.
‣
Enable JavaScript.
‣
Enter http://XXX.XXX.X.X.XX/servlet/
basic.html as the IP address.