6-6 Troubleshooting MN1941WEN
6.2.7 Ethernet
Cannot connect to the controller over TCP/IP:
Check that there is not an EPL manager node (for example NextMove e100 with node ID
240) on the network. If there is a manager node on the network, then an EPL compatible
router must be used to allow TCP/IP communication on the EPL network.
Check that the PC’s Ethernet adapter has been correctly configured, as described in
section 5.1.7.
The Ethernet POWERLINK network does not seem to be operating correctly:
Confirm that only one device on the network is set to be the Ethernet POWERLINK
manager node (node ID 240, selector switches LO = F, HI = 0).
Confirm that the reference source on all controlled nodes has been set to EPL in the Mint
WorkBench Operating Mode Wizard, and that the manager node has been configured
correctly. For a NextMove e100 manager node, this requires the System Configuration
Wizard to be used in Mint WorkBench.
Confirm that each device on the network has a different node ID.
Confirm that there are no more than 10 ‘daisy-chained’ devices on each branch of the
network.
6.2.8 CANopen
The CANopen bus is ‘passive’:
This means that the internal CAN controller in the NextMove e100 is experiencing a number
of Tx and/or Rx errors, greater than the passive threshold of 127. Check:
12-24 V is being applied between pin 9 (+24 V) and pin 6 or 3 (0 V) of the CAN
connector, to power the opto-isolators.
There is at least one other CANopen node in the network.
The network is terminated only at the ends, not at intermediate nodes.
All nodes on the network are running at the same baud rate.
All nodes have been assigned a unique node ID.
The integrity of the CAN cables.
The NextMove e100 should recover from the ‘passive’ state once the problem has been
rectified (this may take several seconds).
The CANopen bus is ‘off’:
This means that the internal CAN controller in the NextMove e100 has experienced a fatal
number of Tx and/or Rx errors, greater than the off threshold of 255. At this point the node
will have switched itself to a state whereby it cannot influence the bus. Check:
12-24 V is being applied between pin 9 (+24 V) and pin 6 or 3 (0 V) of the CAN
connector, to power the opto-isolators.
There is at least one other CANopen node in the network.
The network is terminated only at the ends, not at intermediate nodes.
All nodes on the network are running at the same baud rate.
All nodes have been assigned a unique node ID.
The integrity of the CAN cables.
To recover from the ‘off’ state, the source of the errors must be removed and bus then reset.
This can be done using the Mint BUSRESET keyword, or by resetting the NextMove e100.