Diagnostics and troubleshooting Proline Promass E 300 PROFINET
154 Endress+Hauser
Error Possible causes Solution
Not connecting to Web server,
FieldCare or DeviceCare
No WLAN network 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 device is outside of
reception range: Check network
status on operating device.
• 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 active Wait until data transfer or current
action is finished.
Connection lost 1. Check cable connection and
power supply.
2. Refresh the Web browser and
restart if necessary.
Content of Web browser
incomplete or difficult to read
Not using optimum version of Web
server.
1. Use the correct Web browser
version → 62.
2. Clear the Web browser cache and
restart the Web browser.
Unsuitable view settings. Change the font size/display ratio
of the Web browser.
No or incomplete display of
contents in the Web browser
• JavaScript not enabled
• JavaScript cannot be enabled
1. Enable JavaScript.
2. Enter http://XXX.XXX.X.XXX/
basic.html as the IP address.
Operation with FieldCare or
DeviceCare via CDI-RJ45 service
interface (port 8000)
Firewall of computer or network is
preventing communication
Depending on the settings of the
firewall used on the computer or in
the network, the firewall must be
adapted or disabled to allow
FieldCare/DeviceCare access.
Flashing of firmware with FieldCare
or DeviceCare via CDI-RJ45 service
interface (via port 8000 or TFTP
ports)
Firewall of computer or network is
preventing communication
Depending on the settings of the
firewall used on the computer or in
the network, the firewall must be
adapted or disabled to allow
FieldCare/DeviceCare access.
For system integration
Error Possible causes Solution
The device name is not displayed
correctly and contains coding.
A device name containing one or
more underscores has been
specified via the automation
system.
Specify a correct device name
(without underscores) via the
automation system.
12.2 Diagnostic information via light emitting diodes
12.2.1 Transmitter
Different LEDs in the transmitter provide information on the device status.