The master side is checked to see if it can accept communication
when the slave is connected and the check result is displayed.
Network
State
Displays the current state of the CANopen master supported GP/LT
board.
INIT
CANopen module is not initialized yet.
RESET
CANopen module is performing a reset.
PREPARE NET
INIT
CANopen module carries out a check of the slave assignments.
NETWORK
RESET
The CANopen network is reset by NMT command. Resets all
communication slaves.
NETWORK WAIT
The CANopen module waits for a certain time so that the modules
can execute that Reset communication command.
BOOTING UP
The CANopen module initializes the individual slaves on the
network.
CLEAR
The CANopen network is scanned. The CANopen module can be
started.
Operational
Slaves
The CANopen network is operational.
Preoperational
Slaves
The CANopen network is preoperational.
Fatal error
A fatal error has occurred on the network. The CANopen module
will get reset.
A fatal error occurred in an error code. Check the error details
displayed in the lower left of the screen and take the appropriate
action according to the following:
T.8.6 Errors displayed when
CANopen is used
MISSING MAND.
SLAVE
A mandatory module in the CANopen network has a failure.
Communication
status
The different radio buttons shows the communication status of
CANopen Master.
CAN controller
overrun
CAN controller overrun has occurred.
CAN Bus off
BUS OFF detected by CAN Controller.
CAN controller
error
CAN controller is in error state. Check the connection devices
(for example, connector and cable) and then reset the CANopen
module. After confirmation, reset the CANopen master display
unit.
CAN ctrl. Left
error state
CAN controller has left the error state.
Tx LP Queue
overrun
An overrun of the low priority transmit queue has occurred. Low
priority transmit queue is for heartbeat, node guarding and SDO
transfer.
Tx HP Queue
overrun
An overrun of the high priority transmit queue has occurred.
High priority send queue is for TPDOs, NMT, commands, SYNC and EMCY
messages.
Queue overrun
(RXLP)
An overrun of the low priority receive queue has occurred. Low
priority receive queue is for heartbeat, node guarding and SDO
transfer.
Rx HP Queue
overrun
An overrun of the high priority receive queue has occurred. High
priority receive queue is for RPDOs, NMT, commands, SYNC and EMCY
messages.
Optional module
error
At least one optional or unexpected module does not correspond
to the expected network configuration. Reset the network. If this
error reoccurs despite the network reset, review the project
settings and slave configuration.
Mandatory module
error
At least one mandatory module does not match the network
configuration. Review the project settings and slave
configuration.
Network
operational
At least one module (besides the GP/LT) is operational.
Master
operational
The CANopen master module (GP/LT) is in operation.
Error Message
Displays an I/O driver error message. For details on the errors
to be displayed, refer to the following:
T.8.6 Errors displayed when
CANopen is used
