# Output Block Words

The Output word block is an output of the vision system and an input to the PLC/MC. It is read whenever the Set User Data bit changes from 0 to 1, or whenever a job change occurs. The usage of the Output block words is summarized in the below table.

Note: For a detailed description of the signals, see the Industrial Communications Signals topic.

............16-bit Word | Signal
0 .. 1 | Command ID. The available IDs are as follows: :
2 .. 3 |
4 .. 1920 |