74 Chapter 12 CEC Interactive Troubleshooting Environment (ITE)
digit (3) is the logical address of the sending
device (the emulated device); the opcode (84) is
the returned message code (give logical address)
3. Enter the following command to query the log for a message with a specific opcode and
to only return specific parameter values.
CEC1:MSGX? 83 D //queries log for message with specified opcode
and request return of destination address
4. Enter the following command to query the value of a specific byte number of
parameters a message with a user specified opcode:
CEC1:MSGX? 83 P 2 //returns value of 2nd byte of the parameters of
a message with opcode 83
5. Enter the following command to query whether one message with a user specified
opcode occurs before or after another.
CEC1:MSGX? 83 O 84 //returns order of message with opcodes specified
The response will be one of:
0 - opcode 2 occurred before opcode 1
1 - opcode 1 occurred before opcode 2
2 - opcode 1 or opcode 2 not found
3 - opcode 1 and opcode 2 not found
255 - opcode 1 is the same as opcode 2
To clear the CEC message log:
1. Enter the following command to clear the messages in the log.
CEC1:MSGC //clears the message log
You can also clear the message log with the following command:
CECU
Viewing CEC messages with the ACA
You can also log CEC messages using the Auxiliary Channel Analyzer (ACA).
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