Troubleshooting By Using Status Words - Siemens SIMATIC TI555 System Manual

7.5

Troubleshooting by Using Status Words

Troubleshooting
7-10
In addition to auxiliary functions, the CPU provides operational information
in the form of 16-bit status words. Status words can be read with your
programming device. Status words can also be used within a RLL program
thus allowing the system to execute diagnostics during run-time conditions.
Status words supported by the CPU are described in detail in the SIMATIC
TI505 Programming Reference Manual.
TI545/TI555 System Manual