Individual tests
5.12 Trigger output
This test generates a trigger pulse if a pre-set 11-bit or 29-bit identifier appears
on the CAN network. With the trigger pulse (for properties, see section 2.3) you
can trigger an oscilloscope. The telegram of the set 11-bit or 29-bit identifier is
then displayed on the oscilloscope. In this way the level measurements of the
CANcheck can be supplemented with measurements with the oscilloscope, in or-
der for example to detect signal errors.
To use the trigger output, you can connect the CANcheck to the CAN network at
any point:
•
Please connect the CAN / trigger cable (see section 10.2) to the CANcheck.
The "SUB-D9 connector with CAN cable and BNC cable" belongs to the
CANcheck. The "SUB-D9 connector with CAN cable" belongs to the CAN
network.
•
If there is a free SUB-D9 socket in the CAN network, you can connect the
CANcheck to this socket with the "SUB-D9 connector with CAN cable".
•
If this is not the case, you can loop in the Y cable between any CAN node
and the CAN network. Connect the CANcheck to the Y cable with the "SUB-
D9 connector with CAN cable".
Please put the CAN network into operation before you use the trigger output.
Select the menu item "Trigger output" with the keys UP and DOWN and press the
OK key.
Individual tests
-Power supply
-Baudrate detection
-Identifier scan
-Bus load
-Signal levels per id
-Trigger output
Select either 11-bit identifier or 29-bit identifier with the keys UP and DOWN and
press the OK key.
Then set the identifier. Select the place in the identifier with the keys LEFT and
RIGHT. Change the value with the keys UP and DOWN. Confirm your selection
with the OK key.
Then you will see a message. Now you can measure the trigger signal on the BNC
connector of the CAN / trigger cable.
Copyright IXXAT Automation GmbH
CANcheck Manual, Version 1.2
50
