Siemens SIMATIC S7-1500 Function Manual page 216

Diagnostics
10.3 Technology alarms
Display of technology alarms
A technology alarm is displayed in the following locations:
● TIA Portal
– "Technology object > Diagnostics > Status and error bits"
– "Technology object > Commissioning > Axis control panel"
– "Inspector window > Diagnostics > Message display"
● User program
– Tags <TO>.ErrorDetail.Number and <TO>.ErrorDetail.Reaction
– Tag <TO>.StatusWord
– Tag <TO>.ErrorWord
– Tag <TO>.WarningWord
– Parameter "Error" and "ErrorID"
● Display of the CPU
In order to show technology alarms on the CPU display, make the following setting when
loading to the CPU:
In the "Load preview" dialog, select the action "Consistent download" for the "Text
libraries" entry.
216
Display of pending technology alarms for each technology object.
Display of the last pending technology alarm for each technology object.
Select the "Receive messages" check box under "Online & Diagnostics > Online
Access" in order to display technology alarms via the message display.
With an online connection to the CPU, the pending technology alarms for all
technology objects are displayed. Additionally, the archive view is available to you.
The message display can also be enabled at a connected HMI, and displayed.
– "CPU > Online & diagnostics"
Display of the technology alarms that have been recorded in the diagnostics buffer.
Indication of the number and the reaction for the last technology alarm that occurred.
A pending technology alarm is indicated with bit 1 ("Error").
Indication of alarms and fatal errors.
Indication of warnings.
In a Motion Control instruction, the parameters "Error" = TRUE and
"ErrorID" = 16#8001 indicate that a technology alarm is pending.
S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC