Error Information Details - Omron NE1A-SCPU01 - 2006 Operation Manual

Error History

10-4-2 Error Information Details

Message
NE1A-series Controller System Failures
System Failure
Invalid Configuration
Logic Programming-related Errors
Function Block Status
Error
DeviceNet Communications Errors
Switch Setting
Mismatch
Duplicate MAC ID
Network PS Voltage Low Network power supply
Bus Off
Transmission Timeout
Standard I/O
Connection Timeout
Relevant Safety I/O
communication stopped
because of a Safety I/O
communication error
All Safety I/O communi-
cation stopped because
of a Safety I/O communi-
cation error
Safety I/O Connection
Timeout
Nonexistent Slave
Device
Safety I/O Connection
Establishment Failure
Invalid Slave Device
EM Transmission Error
(Duplicate MAC ID)
EM Transmission Error
(Invalid Header)
EM Transmission Error
(Device Offline)
EM Transmission Error
(Message ID Error)
EM Transmission Error
(Response Timeout)
System failure
Configuration invalid
Function Block Status Error An incompatible signal input was set as an input condition in the
Switch setting mismatch
Node address duplication
voltage low error
Bus OFF (Communica-
tions cut off by frequent
data errors.)
Transmission timeout
Standard I/O connection
timeout
The corresponding safety
I/O connection was
stopped due to a safety I/O
connection timeout.
All safety I/O connections
were stopped due to a
safety I/O connection time-
out.
Safety I/O connection time-
out
No slave
Safety I/O connection
establishment error
Unauthorized slave
device (verification error)
Unable to transmit due to
node address duplication.
Unable to transmit due to
invalid header.
Unable to transmit
because local device is not
on the network.
Unable to transmit due to
message ID error.
Unable to transmit due to
response timeout.
Corrective Actions
Replace the unit if the system failure still occurs after turning ON the
power supply again.
Configuration differs from the original configuration. Reconfigure
after checking.
function block's Set Parameters. Check the inputs entered in the
function block or the program logic.
Check that the node address is the same as the one in the last
configuration. If not, change back to the same node address or
reconfigure. If the error occurs again, replace the unit.
Check the node address of other nodes.
Correct the configuration so that each node address is used only
once and then cycle the power supply.
Check the following points:
• Make sure the power supply voltage is set within the specification
range.
• Make sure a cable or wire is not disconnected.
Check the following points:
• Make sure the baud rate is the same for all nodes.
• Make sure the cable lengths (of main/branch lines) are not too
long.
• Make sure a cable or wire is not disconnected or loose.
• Make sure terminating resistance is at both ends of the main line
and only at both ends.
• Make sure there is not a lot of noise.
• Make sure power is being supplied to the Slave.
Check the following points on the slave device:
• Make sure it is configured.
• Make sure it is operating normally.
Verify the slave device (select Device - Parameters - Compare)
and connect a suitable slave device.
Refer to the section on Duplicate MAC ID.
Check the following points:
• Node address of the transmission message
• Class ID of the transmission message
• Instance ID of the transmission message
Check the following points:
• Make sure the baud rate is the same for all nodes.
• Make sure the cable lengths (of main/branch lines) are not too
long.
• Make sure a cable or wire is not disconnected or loose.
• Make sure terminating resistance is at both ends of the main line
and only at both ends.
• Make sure there is not a lot of noise.
• Make sure the power supply voltage for the network power source
is set within the specification range.
Section 10-4
209