Example Of Enabling The Can Bus; Example Of Modifying The Can Bus Parameters; Example Of Detecting An Address Claim Failure And Reconfiguring - Novatel SMART7 Installation And Operation Manual

Chapter 7 CAN Bus
commands take effect immediately whether entered before or after CANCONFIG. Until then,
J1939CONFIG can be entered many times to change the settings because they have not
taken affect yet (the receiver is not yet on the bus).
The J1939 Address claim procedure is executed if and only if both J1939CONFIG NODEx
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CANx and CANCONFIG CANx ON are entered.
Use J1939STATUS log to determine the receiver's CAN status and the actual address claimed
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by a particular node.
Once the receiver is "on bus", it must be taken "off-bus" using CANCONFIG for any further
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configuration changes using J1939CONFIG.
The receiver is fully "on-bus" only once the J1939 address has been successfully claimed.
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This is reported as "CLAIMED" status by J1939STATUS log.
No messages will be sent or received until the receiver is "online" and an address is claimed.
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Outgoing messages are not buffered; they are discarded until the receiver is online.

7.2.2 Example of Enabling the CAN Bus

1. LOG J1939STATUS ONCHANGED
2. J1939CONFIG NODE1 CAN1 <addresses>
3. CANCONFIG CAN1 ON 250K
4. SAVECONFIG
< J1939STATUS NODE1 DISABLED 0 0xFE
< J1939STATUS NODE1 CLAIMING 1 <address>
< J1939STATUS NODE1 CLAIMED <attempt count> <address>

7.2.3 Example of Modifying the CAN Bus Parameters

1. LOG J1939STATUS ONCHANGED
2. CANCONFIG CAN1 OFF
3. J1939CONFIG NODE1 CAN1 <addresses>
4. CANCONFIG CAN1 ON
5. SAVECONFIG
< J1939STATUS NODE1 DISABLED 0 0xFE
< J1939STATUS NODE1 CLAIMING 1 <address>
< J1939STATUS NODE1 CLAIMED <attempt count> <address>

7.2.4 Example of Detecting an Address Claim Failure and Reconfiguring

1. LOG J1939STATUS ONCHANGED
2. J1939CONFIG NODE1 CAN1 <addresses>
3. CANCONFIG CAN1 ON
< J1939STATUS NODE1 DISABLED 0 0xFE
< J1939STATUS NODE1 CLAIMING 1 <address>
SMART7 Installation and Operation User Manual 0C 101