
UG-1037
ePAQ-9100
36
Troubleshooting
Copyright © 2017 QEI
manual.
Is the Port configured for the correct
handshaking, if required, to match the cable?
Check port configuration in ePAQ file and
change if necessary. Refer to Configuring
Communication Ports in Section 3 of this
manual
Master Station sends a message to the ePAQ, the ePAQ receives the message but
the ePAQ does not respond. The message can be verified as received by using the
‘pr’ command. Problem Solution
Is the Port configured for the correct
protocol? Does the address in the
message from the Master Station
match the actual
Check port configuration in configuration file
and change if necessary. Check the address
as specified by the S2 DIP Switches on the
6CPP6.
ePAQ address?
Or, if the RTU address is specified in the
Master Station configuration, check that the
address is correct. Refer to the
appropriate ConfigWiz protocol addendum for
more information.
Is there data mapped to the Master
Station in the ePAQ configuration file?
Check that there is data mapped to the Master
Station under test. Refer to Configuring
Servers in Section 3 of this manual.
Does the protocol implementation
support the message type being sent
by the Master Station?
Consult with QEI Technical Assistance for
more information.
The ePAQ responds to Master Station’s message, but the Master Station does not
receive the ePAQ’s response. Problem Solution
If the connection between the Master
Station and the RTU is a radio link:
• Check that Rts-Cts is properly wired from the
ePAQ port and the radio.
• Check that Push to Talk is
properly wired from the ePAQ port and the
radio. Also, check that Push to Talk is correctly
configured in the file.
• If no Rts-Cts connection is
used, increase the value of ‘RtsCtsDelay’ in the
Port configuration. Refer to Configuring
Communication Ports in Section 3 of this
manual.
Does the Master Station receive the
• Check that the Master Station
complete message, but regards it as
bad and tries to send the same poll
again?
port is properly configured.