Access to diagnosis data

Access to device state

Error LED on CPU

⮫ “Diagnosis in CPU display”
Automation Builder device tree

⮫ “Diagnosis in Automation Builder”
IEC application via device name

⮫ “Device diagnosis”
IEC application via list of all available diagnosis

⮫ “System diagnosis”
External access via global IEC variables

Fig. 395

Access to diagnosis descriptions

CPU display (for CPU, I/O bus and connected S500 I/O modules, not for communication modules and field buses)

⮫ “Diagnosis descriptions”
Automation Builder via “All messages” window:

⮫ “Diagnosis descriptions”
- Support for (bulk) acknowledgement of alarm.
- Access to extended diagnosis data of 3^rd party devices devices (if available), without any interpretation.
IEC application via a list of all current diagnosis either of a device (device object from the Automation Builder tree) or of the complete PLC:

⮫ “Device diagnosis”

⮫ “System diagnosis”
- Navigation chronologically in both directions (starting either from the oldest or newest diagnosis).
- Access to the diagnosis numerically (evaluation by IEC application), textual (use on HMI) or to extended diagnosis data of 3^rd party devices (if available).
- Acknowledgement of alarms.
External access via global IEC variables by using the IEC application features for getting all relevant information.

Access to extended diagnosis

Extended diagnosis data will be displayed in Automation Builder via “All messages” window. The data is displayed as it is provided from the device without any interpretation. Refer to e.g., the manual of the device to get information about the extended diagnosis data.