Omron CJ1W-SCU32 Operation Manual page 310

9 Troubleshooting and Maintenance
Event code Event name
54AA 0000 hex Protocol
Macro Error
64A0 0000 hex Tfs (Send
Finished
Monitoring
Time)
Exceeded
64A1 0000 hex Tfr (Receive
Finished
Monitoring
Time)
Exceeded
64A2 0000 hex Tr (Receive
Wait Monitor-
ing Time)
Exceeded
9-32
Meaning Assumed cause
An error occurred in • Sequence No. Error: An unreg-
the protocol macro. istered number was specified
for SeqNo (communications
sequence number) of the
ExecPMCR instruction (no indi-
cators light).
• Data read/write area exceeded
error: The specified area range
was exceeded when data was
written to or read from the CPU
Unit. (The ERC indicator and
ERR/ALM indicator will flash.)
• Protocol data syntax error:
There was a code that cannot
be executed during protocol
execution. (The ERC indicator
and ERR/ALM indicator will
flash.)
• The total of the areas speci-
fied for link words O1, O2, I1,
and I2 exceeded 500 words.
• The same link word is used
by both ports 1 and 2.
• Writing was specified with a
constant.
• Interrupt notification was
specified for a Serial Commu-
nications Unit.
• Thirty one or more items
were set for the write attribute
data for one message.
• A length of 0 bytes was speci-
fied for a message that was
sent or received.
• The length of a message to
be sent or received exceeds
the maximum send/receive
bytes.
• A message is not registered
for matrix reception.
• The transmission control is
set to both RTS/CTS flow
control and Xon/Xoff flow
control.
The time required • Noise
to complete a send
• The monitor time is shorter than
operation exceeded
the actual completion time.
the Send Finished
Monitoring Time.
The time required • Noise
to complete a
• The monitoring time is shorter
reception operation
than the actual completion time.
exceeded the
Receive Finished
Monitoring Time.
The receive waiting • Noise
time exceeded the
• The monitoring time is shorter
Receive Wait Moni-
than the actual completion time.
toring Time.
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
Level
Maj Prt Min Obs Info
√
page 9-41
√
page 9-42
√
page 9-42
√
page 9-43
Reference