Specifications

Open CTM (Revision D)

Command Reference

b = 1 conditional operator for all following parameters: AND

b = 2 conditional operator for all following parameters: OR

t = 0 timeout disabled

t = 1 to 65535 timeout in seconds

mt = 0 to 65535 maximum reporting rate in seconds (minimum time between reports)

Optional parameters:

trigx trigger parameter x enclosed in single quotes and without spaces in between, in the form 'pid^val'

where:

pid = p1 to pb engine parameters as per OBD2/J1939 Parameters Table except for p4 and id

^ - > trigger using greater than operator

^ - = trigger using equal to operator

^ - < trigger using less than operator

val engine parameter value that sets off the trigger, in decimal nnnn.nn (refer to OBD2/J1939 Parameters

Table for allowable range of values)

Each OBD trigger condition may be configured with up to 4 trigger parameters.

The current parameter(s) for a trigger condition can be queried by using the obdcond n command. If n is

blank, all OBD trigger conditions will be queried.

Examples of OBD trigger parameters:

'p1>0' trigger is set off when p1 (vehicle speed) is greater than 0 km/h

'p2=5000' trigger is set off when p2 (engine RPM) is equal to 5000 RPM

'p8<200.75' trigger is set off when p8 (engine coolant temperature) is less than 200.75°C

Examples:

1. Set OBD trigger #1 to send a report every 60 seconds

cmd obdcond 1 1 60

2. Set OBD trigger #2 to send a report every 30 seconds AND P1 (vehicle speed) is equal to 0.0 km/h with

a maximum report rate of one every 5 seconds

cmd obdcond 2 1 30 5 'p1=0.0'

3. Set OBD trigger #3 to send a report every 60 seconds OR P1 (vehicle speed) is greater than 0 km/h OR

P2 (engine RPM) is greater than 2000 with a maximum report rate of one every 5 seconds

cmd obdcond 3 2 60 5 'p1>0' 'p2>2000'

4. Set OBD trigger #4 to send a report only when P1 (vehicle speed) is less than 10 km/h AND P2 (engine

RPM) is equal to 0 RPM AND P7 (calculated engine load value) is equal to 0 percent AND P8 (engine

coolant temperature) is -40°C with a maximum report rate of one every 15 seconds