Campbell Scientific SDM-CAN Datalogger to CANbus Interface User Manual
Page 56
Appendix B. A Summary of Data Types
B-2
Data
Type
Description
29
Read SDM-CAN status
Status Description
0000
The SDM-CAN has bus activities; error counters < 96.
0001
The SDM-CAN has bus activities; at least one error
counter is >= 96.
0002
The SDM-CAN is not involved in bus activities; error
counters < 96.
0003
The SDM-CAN is not involved in bus activities; at
least one error counter >=96.
30
Read SDM-CAN operating system and version number
31
Send Remote Frame Request.
32
Set SDM-CAN's internal switches
Switch Code Description
A
0
Not
used
B
0
returns the last value captured (default)
1
returns –99999 if value already read by
datalogger
C
0
Disable interrupts (default)
1
Enable pulse interrupts
2
Enable fast interrupts
3-7
Not
defined
8
Place the SDM-CAN into low power
stand-by
mode.
9
Leave switch setting unchanged.
D
0
Listen only (error passive) mode.
1
Transmit once.
2
Self-reception.
3
Normal
retransmission
4
Transmit
once
5
Self-reception; self -test.
6
Normal; self-test.
7
Active
at
power-up.
8
Not
defined.
9
Leave switch setting unchanged.
33
Read SDM-CAN's internal switches (see above)