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| Symptom | Check |
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| The CANopen bus is | This means that the internal CAN controller in the NextMove ES has |
| ‘off’ | experienced a fatal number of Tx and/or Rx errors, greater than the |
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| off threshold of 255. |
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| At this point the node will have switched itself to a state whereby it |
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| cannot influence the bus. |
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| Check: |
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| H |
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| connector, to power the |
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| H There is at least one other CANopen node in the |
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| network. |
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| H The network is terminated only at the ends, not at |
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| intermediate nodes. |
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| H All nodes on the network are running at the same |
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| baud rate. |
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| H All nodes have been assigned a unique node ID. |
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| H The integrity of the CAN cables. |
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| To recover from the ‘off’ state the bus must be reset. This can be |
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| done using the MintMT BUSRESET keyword, or by resetting the |
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| NextMove ES. |
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| The Manager node | Assuming that the network is working correctly (see previous |
| cannot | symptoms) and the bus is in an ‘Operational’ state, check the |
| scan/recognize a | following: |
| node on the network |
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| using the MintMT | H Only nodes that conform to DS401, DS403 and other |
| NODESCAN keyword. | Baldor CANopen nodes are supported by the MintMT |
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| NODESCAN keyword. |
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| H Check that the node in question has been assigned a |
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| unique node ID. |
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| H The node must support the node guarding process. |
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| NextMove ES does not support the Heartbeat |
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| process. |
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| H Try |
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| If the node in question does not conform to DS401 or DS403 and is |
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| not a Baldor CANopen node, communication is still possible using a |
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| set of general purpose MintMT keywords. See the MintMT help file |
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| for further details. |
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| The node has been | For communication to be allowed, a connection must be made to a |
| successfully | node after it has been scanned. |
| scanned / |
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| recognized by the | H Baldor controller nodes are automatically connected |
| Manager node, but | to after being scanned. |
| communication is still | H Nodes that conform to DS401, DS403 must have the |
| not possible. | connections made manually using the MintMT |
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| CONNECT keyword. |
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| If a connection attempt using CONNECT fails then it may be because |
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| the node being connected to does not support an object which |
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| needs to be accessed in order to setup the connection. |
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MN1928 | Troubleshooting |