Resources for the New Generation of Automation and Control
2018-01-24: To accommodate the proposed use of Transient EC States,
been modified to allow ECCs containing zero or more EC Transitions. Basic
FB Types developed with earlier versions of this DTD are
forward-compatible with this DTD.
2017-11-15: A question mark
has been added to the end of the list of contents options in the
in order to avoid a conflict with the semantics of the
actions as defined in Table
6.5-1 of the Compliance Profile.
has been updated as follows, in anticipation of corresponding changes
in IEC 61499-2, 2nd Edition:.
x,yparameters have been added to
Algorithms now have the possibility to have
VarDeclarations of temporary variables.
Applications now contain
SubAppNetworks instead of
CompilerInfosub-element has been added to the
Otherlanguages, and the
Expressionportion of LD
element has been added to
for use in READ/WRITE operations, in anticipation of the
corresponding change in the 2nd Edition of IEC 61499-1.
been updated as follows:
RESEThas been added to the list of enumerated values for the
Request.Action attribute. This action is present in Figure 24 of IEC 61499-1, but was missing in Table 8 (this will be corrected in the next Edition of 61499-1).
FBStatus.Statusattribute has been changed from
(IDLE|RUNNING|STOPPED|KILLED)for consistency with Figure 24 of IEC 61499-1 The previous list was from a very early Industry Technical Agreement (ITA) and was rarely if ever implemented.
has been updated to correct an error in the definition of the
element. XML files of IEC 61499 system configurations produced
by previous versions of the FBDK prior to
this update may not comply with these DTDs. The XMLChecker
application can be used to check for this compliance.