Eliminating errors
104275_en_c00
PHOENIX CONTACT
5-3
019
Protocol of the serial in-
terface contains too long
frames
ERR LED and
DIAG LED on
A frame-oriented transmission
was configured. In this configura-
tion, frames up to a length of 500
characters can be transmitted. But
frames with more than 500 charac-
ters are received.
–
If the protocol does not con-
tain frames in that length:
–
Check if the frame end-
time is set correctly.
–
If the protocol does contain
frames in that length:
–
Change to character-ori-
ented transmission, if
possible.
020
Too many parity errors on
the serial interface
ERR LED and
DIAG LED on
More than 40 % of the data pack-
ets contain parity errors. This can
be explained only by a misconfigu-
ration.
Check that the following device
settings are correct and match the
data to be transmitted:
–
parity
–
data bits (7 or 8 bits)
–
stop bits
–
data rate
021
Too many stop bit errors
on the serial interface
ERR LED and
DIAG LED on
More than 40 % of the data pack-
ets contain stop bit errors. This can
be explained only by a misconfigu-
ration.
Check if the following device set-
tings are correct and match the
data to be transmitted:
–
parity
–
data bits (7 or 8 bits)
–
stop bits
–
data rate
022
Data overload on the
SHDSL line
ERR LED and
DIAG LED on
At least temporarily, the transmis-
sion capacity of the SHDSL line is
not large enough. Data can not be
moved as quickly on the SHDSL
line, as they are received.
–
Reduce the serial data rate
–
If possible, increase the SHD-
SL data rate
023
Device configuration in-
compatible/inconsistent
ERR LED and
DIAG LED on
The configuration of a neighbor
device is not compatible with the
configuration of this device.
Configure all devices as it is speci-
fied in the relevant configuration
wizard.
024
Massive protocol viola-
tions on the serial inter-
face
ERR LED and
DIAG LED on
On the serial interface there are
many too long periods of "zeros".
Cause:
–
Incorrect data rate configured
(actual data rate is lower than
that of the device).
–
A short circuit on the serial
data line.
–
If RS-422 or RS-485 is used, a
reversed polarity of Line R(N)
and R(P) in RS-422 mode or
Line D(A) and D(B) in RS-485
mode may be the reason, too.
–
Is the correct data rate confi-
gured?
–
Wiring of the serial interface
(short circuit?)
–
A driver of a device connected
to the serial port may be de-
fective
–
In RS-422/RS-485 mode, seri-
al interface signal lines may be
interchanged (Reversed po-
larity in RS-485 or RS-422
mode)
Table 5-1
Diagnostic IDs
No.
Meaning
LED
Possible cause(s)
Remedy