Diagnostics with the CP 341
8.1 Diagnostics Functions of the CP 341
CP 341 Point-to-Point Communication, Installation and Parameter Assignment
194 Manual, 09/2008, A5E02191071-01
Event class 7 (07H):
"Send error"
Event no. Event Remedy
(07)04H 3964(R) only:
Cancellation by partner:
One or more characters were received from the
partner during sending.
Check whether the partner also indicates an error;
possibly it has not received all of the transmitted
data (for example, due to an interrupted data link), or
because fatal errors are pending, or the behavior of
the partner device is faulty. If necessary, use an
interface test device switched into the transmission
line to check.
(07)06H 3964(R) only:
End-of-connection error:
• Partner rejected message frame at end of
connection with NAK or a random string
(except for DLE), or
• Acknowledgment characters (DLE) received
too early.
Check whether the partner also indicates an error;
possibly it has not received all of the transmitted
data (for example, due to an interrupted data link), or
because fatal errors are pending, or the behavior of
the partner device is faulty. If necessary, use an
interface test device switched into the transmission
line to check.
(07)07H 3964(R) only:
Acknowledgment delay time exceeded at end of
connection or response monitoring time exceeded
after a send message frame:
After connection termination with DLE ETX, no
response received from partner within
acknowledgment delay time.
Partner device too slow or faulty. If necessary, use
an interface test device switched into the
transmission line to check.
(07)08H ASCII driver and printer driver only:
The waiting time for XON or CTS = ON has
expired.
The communication partner is faulty, too slow, or has
been taken offline. Check the communication
partner; you may need to change the parameter
assignment.
(07)09H Not possible to connect. Number of permitted
setup attempts exceeded.
Check the interface cable or the transmission
parameters.
Also check whether the receive function between the
CPU and CP is assigned correctly in the partner
device.
(07)0AH Data could not be transmitted. The permitted
number of transmission attempts was exceeded.
Check the interface cable or the transmission
parameters.
Event class 8 (08H):
"Receive error"
Event no. Event Remedy
(08)01H Expectation of the first repetition:
An error was detected on receiving a message
frame and the CP requested repetition from the
partner via a negative acknowledgment (NAK).
A repetition is not an error, but it can indicate that
there is interference on the data link or the partner
device has malfunctioned. If the message frame still
has not been transmitted after the maximum number
of repetitions, an error number describing the first
error that occurred is output.
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