Conversion Operations - Siemens SIMATIC S7-1200 Reference Manual

Basic instructions
Read field
✔ ✔
Recommendation: Indexed access to an array
Write field
✔ ✔
Recommendation: Indexed access to an array

Conversion operations

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