M580 System Words

Diagnostic System Words

WARNING

UNEXPECTED APPLICATION BEHAVIOR

Do not use system objects (%Si, %SWi) as variable when they are not documented.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

Control Expert presents the following M580-specific system words you can use when diagnosing the state of your M580 Hot Standby system:

%SW132 to %SW134: CPU MAC Address.
%SW135 to %SW137: CPU serial number
%SW146 and %SW147: SD card serial number
%SW160 to %SW167: Detected errors for racks 0...7

For a more detailed description of these system words, refer to the M580 section of the EcoStruxure™ Control Expert System Bits and Words Reference Manual.