Campbell Scientific SDM-CAN Datalogger to CANbus Interface User Manual
Page 31
SDM-CAN Datalogger-to-CANbus Interface
3-
7
Currently unused
8
Set low power standby mode. The SDM-CAN cannot
wake from this state as a result of CAN-Bus activity.
Setting this switch to any other value will bring the SDM-
CAN out of standby.
9
Leave this switch setting unchanged
Switch ‘d’:
0
Listen only mode, no CAN transmission or
acknowledgement to a correctly received CAN frame is
possible. The SDM-CAN runs in ‘Error Passive’ mode
(Default).
1
One shot transmission, no re-transmission will occur in
the event of loss of arbitration or error. Frames received
correctly from an external node are acknowledged
2
Self-reception. A frame transmitted from the SDM-CAN
that was acknowledged by an external node will also be
received by the SDM-CAN but no re-transmission will
occur in the event of loss of arbitration or error. Frames
received correctly from an external node are
acknowledged
3
Normal, re-transmission will occur in the event of loss of
arbitration or error. Frames received correctly from an
external node are acknowledged. This is the usual setting
to use if the SDM-CAN is to be used to transmit data.
4
One shot transmission and self test mode. The SDM-CAN
will perform a successful transmission even if there is no
acknowledgement from an external CAN node. Frames
received correctly from an external node are
acknowledged
5
Self-reception and self test mode. The SDM-CAN will
perform a successful transmission even if there is no
acknowledgement from an external CAN node. Frames
received correctly from an external node are
acknowledged. The SDM-CAN will receive its own
transmission
6
Normal and self test mode. The SDM-CAN will perform a
successful transmission even if there is no
acknowledgement from an external CAN node. Frames
received correctly from an external node are
acknowledged.
7
Similar to switch setting 'd-3' , but this setting is
'remembered' at power-up. During power-up, the SDM-
CAN will acknowledge all valid messages.
NOTE: This setting relies on the datalogger having set up
the SDM-CAN before use.
8
Not
defined
9
Leave this switch setting unchanged
23