Siemens SIMATIC S7-1500T Reference Manual

A5E33284667-AA Page 22
Extended instructions
Basic instructions
Communication
Technology
S7-300
S7-400
S7-1200 S7-1500
Description LAD/FBD
STL
(not S7-1200)
SCL
✔ ✔
Read field
Recommendation: Indexed access to an array
FieldRead
✔ ✔
Write field
Recommendation: Indexed access to an array
FieldWrite
Conversion operations
✔ ✔ ✔ ✔
Convert value
S7
-1200/1500: Is carried out implicitly,
therefore usually not necessary.
CONVERT
CONVERT
✔ ✔ ✔ ✔
Only Safety: Convert data of data type BOOL
into data of data type WORD
BO_W
✔ ✔ ✔ ✔
Only Safety: Convert data of data type WORD
into data of data type BOOL
W_BO
✔
✔
✔
✔
Round numerical value
ROUND
RND
ROUND
✔ ✔ ✔ ✔
Generate next higher integer from floating-point
number
CEIL
RND+
CEIL
✔ ✔ ✔ ✔
Generate next lower integer from floating-point
number
FLOOR
RND-
FLOOR
✔
✔
✔
✔
Truncate numerical value
TRUNC
✔
✔
✔
✔
Scale
SCALE_X
✔
✔
Normalize
NORM_X

Siemens SIMATIC S7-1500T Specifications

General

Brand	Siemens
Model	SIMATIC S7-1500T
Category	Controller
Language	English