Omron CJ1W-DRM21 Operation Manual page 268

9 Troubleshooting and Maintenance
Event code Event name
34C20000 hex Slave I/O
Refresh Error
34C30000 hex Slave User
Allocation
Area Setting
Failed
64AC 0000 hex Send Time-
out Error
74600000 hex Master Func-
tion
Enable/Dis-
able Failed
74610000 hex Master Fixed
Allocation
Area Setting
Failed
9-38
Meaning Assumed cause
The I/O memory in • I/O words are allocated in an
the destination EM bank that does not exist.
CPU Unit for I/O
refreshing could not
be found when
refreshing the slave
function data in the
CPU Unit.
An error occurred in • The slave function is not dis-
the following opera- abled.
tion for user alloca-
• There is a mistake in the user
tion of the slave.
allocations to a slave.
• CPU Unit is not in PROGRAM
mode.
• More than one software switch
changed to TRUE at the same
time. Or, another software
switch changed to TRUE before
processing was completed for a
previous software switch.
A send timeout • There is no slave or other
occurred. device on the network.
• The same baud rate is not set
for all nodes.
• Communications cable lengths
(trunk line and branch lines) are
unsuitable.
• A communications cable is dis-
connected or loose.
• The terminating resistance is
somewhere other than the ends
of the trunk line.
• Noise
• There is an error in the CAN
controller.
An operating error • An attempt was made to enable
occurred when the master function when it was
enabling or dis- already enabled.
abling the master
• An attempt was made to dis-
function.
able the master function when it
was already disabled.
• CPU Unit is not in PROGRAM
mode.
• More than one software switch
changed to TRUE at the same
time. Or, another software
switch changed to TRUE before
processing was completed for a
previous software switch.
An error occurred in • The master function is not
one of the following enabled.
operations for fixed
• The scan list is not disabled.
allocation of the
• CPU Unit is not in PROGRAM
master.
mode.
• More than one software switch
changed to TRUE at the same
time. Or, another software
switch changed to TRUE before
processing was completed for a
previous software switch.
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
Level
Maj Prt Min Obs Info
S page 9-48
S page 9-48
S page 9-49
S page 9-50
S page 9-51
Reference