CODESYS Application Composer
Persistence Channel A persistence channel defines the storage settings for one or more groups of persistent variables. It can be added to a Persistence Manager node by use of the command Add submodule
CODESYS Application Composer
Module: Data Storage The submodule Data Storage defines the storage format of a persistence channel . . Choose one of the following storage formats: ASCIIFileStorage : Saving the values in ASCII forma
CODESYS Application Composer
Definition of Persistent Variables Single variables as well as structure instances and function block instances can be marked as "persistent" by the use of attributes. When an instance is marked, all
CODESYS Application Composer
Data Storage The storage of persistent variables can be triggered in various ways: Each persistence channel provides an application interface which can be used by the application to trigger a storage
CODESYS Application Composer
Storage Format There are two implementations of the interface IDataStorage available: ASCIIDataStorage and BinaryDataStorage . In both formats the first variable which is stored is the reserved variab
CODESYS Application Composer
Data Access The Persistence Manager provides up to 10 submodule instances of type PersistenceChannel. Each persistence channel provides a submodule instance of type DataStorage which is responsible fo
CODESYS Application Composer
Diagnosis Each persistence channel has a submodule which allows data access (interface IDataStorage ). The following outputs provide diagnostic information: Output Data Type Description xActionOngoing
CODESYS Application Composer
Error Handling Error numbers and the related strings are called or acknowledged by means of the standard module interfaces ( ClearErrors , FirstErrorNumber , GetFirstErrorMessage , LastErrorNumber , G
CODESYS Application Composer
DataLog Manager The DataLog Manager is a standard component of the Application Composer. It serves for cyclic storage of variable values into a file. These variables are flagged with special attribute
CODESYS Application Composer
Module: DataLog Manager The DataLog Manager manages the data logging of variables. It can be added to the module tree below the upper most object . This is done by the Add Toplevel Instance command an