F.W. Bell 5280 - Page 56

STANDARD EVENT REGISTER
If any of these bits set, and their respective enable bits are set, the Event Summary Bit (ESB) will set in the STATUS BYTE.
PON–Power On:
Indicates that the meter was turned off and on since the last communication.
CME – Command Error:
Indicates that there was a syntax or spelling error in the command, or the command received is not supported.
EXE – Execution Error:
Indicates that the meter detected an error while attempting to execute a command.
DDE – Device Dependent Error:
Indicates that the meter did not operate properly due to some internal error.
OPC – Operation Complete:
Indicates that all requested operations have been completed.
4-7
Figure 4-3
Standard Event Registers