Siemens Simatic S7-1500

A5E33284667-AF Page 15
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200 S7-1500
Description LAD/FBD
STL
(not S7-1200)
SCL
✔
✔
Check validity
-|OK|-
nn
✔
✔
Check invalidity
-|NOT_OK|-
nn
Variant
✔
✔
Check data type of a VARIANT tag
TypeOf
✔ ✔
Scan data type of an ARRAY element of a
VARIANT tag
TypeOfElements
✔ ✔
Compare data type for EQUAL with the data
type of a tag
EQ_Type
*)
✔ ✔
Compare data type of an ARRAY element for
EQUAL with the data type of a tag
EQ_ElemType *)
✔ ✔
With a tag of type DB_ANY, compare the data
type of an indirectly addressed DB with a data
type for EQUAL.
Identify any data block with DB_ANY. You then
have the option of
accessing a data block that
is not yet available during programming.
EQ_TypeOfDB:
*)
✔ ✔
Compare data type for UNEQUAL with the data
type of a tag
NE_Type *)
✔ ✔
Compare data type of an ARRAY element for
UNEQUAL with the data type of a tag
NE_ElemType
*)