1-second UPS (persistent data)
CX50x0 71Version: 1.9
5.5.2 PlcAppSystemInfo
Each PLC contains an instance of type 'PlcAppSystemInfo' with the name '_AppInfo'.
The corresponding namespace is 'TwinCAT_SystemInfoVarList'. This must be specified for use in a library,
for example.
TYPEPlcAppSystemInfo
STRUCT
ObjId:OTCID;
TaskCnt:UDINT;
OnlineChangeCnt:UDINT;
Flags:DWORD;
AdsPort:UINT;
BootDataLoaded:BOOL;
OldBootData:BOOL;
AppTimestamp:DT;
KeepOutputsOnBP:BOOL;
ShutdownInProgress: BOOL;
LicensesPending: BOOL;
BSODOccured: BOOL;
TComSrvPtr:ITComObjectServer;
AppName:STRING(63);
ProjectName:STRING(63);
END_STRUCT
END_TYPE
ObjId Object ID of the PLC project instance
TaskCnt Number of tasks in the runtime system
OnlineChangeCnt Number of online changes since the last complete download
Flags Reserved
AdsPort ADS port of the PLC application
BootDataLoaded PERSISTENT variables: LOADED (without error)
OldBootData PERSISTENT variables: INVALID (the back-up copy was loaded, since no
valid file was present)
AppTimestamp Time at which the PLC application was compiled
KeepOutputsOnBP The flag can be set and prevents that the outputs are zeroed when a
breakpoint is reached. In this case the task continues to run. Only the
execution of the PLC code is interrupted.
ShutdownInProgress This variable has the value TRUE if a shutdown of the TwinCAT system is in
progress. Some parts of the TwinCAT system may already have been shut
down.
LicensesPending This variable has the value TRUE if not all licenses that are provided by
license dongles have been validated yet.
BSODOccured This variable has the value TRUE if Windows is in a BSOD.
TComSrvPtr Pointer to the TcCOM object server
AppName Name generated by TwinCAT, which contains the port.
ProjectName Name of the project
Differences compared with TwinCAT 2
If the variable runTimeNo was used under TwinCAT 2, the corresponding program code must be converted
for application under TwinCAT 3.
Example:
• Application under TwinCAT 2: nPlcAdsPort := 801 + (SystemInfo.runTimeNo - 1) * 10;
• Application under TwinCAT 3: nPlcAdsPort := _AppInfo.AdsPort;
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