This conversion algorithm produces the following result classes:
•• Floating point numbers ≥ 0 or ≤ -1 result in the next lower
number.
•• Floating point numbers < 0 and > -1 result in the value ’0’.
Conversion examples
Examples of CFW, CSW
Floating point number 32-bit fixed point number
GFD
+5,7 → 5
-2,3
→ -3
-0,6 → 0
+0,9
→ 0
1. You want the contents of data word DW 64
inverted bit for bit (reversed) and stored in
data word DW 78.
STEP 5 program: Assignment of the data words:
:L DW 64 KM = 0011111001011011
:CFW
:T DW 78 KM = 1100000110100100
2. The contents of data word DW 207 are
interpreted as a fixed point number and stored
in data word 51 with a reversed sign.
STEP 5 program: Assignment of the data words:
:L DW 207 KF = +51
:CSW
:T DW 51 KF = -51
Executive Operations
CPU 948 Programming Guide
C79000-G8576-C848-04
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