Statement List (STL) - DCE FEL ČVUT v Praze

Conversion Instructions
3.12 NEGR Negate Floating-Point Number (32-Bit, IEEE-FP)
Format
NEGR
Description of instruction
Status word
Example
NEGR (negate 32-bit IEEE floating-point number) negates the floating-point number
(32-bit, IEEE-FP) in ACCU 1. The instruction inverts the state of bit 31 in ACCU 1
(sign of the mantissa). The result is stored in accumulator 1.
BR CC 1 CC 0 OV OS OR STA RLO /FC
writes: - - - - - - - - -
STL Explanation
L ID8 //Load value into ACCU 1 (example: ID 8 = 1.5E+02).
NEGR //Negate floating-point number (32-bit, IEEE-FP); stores the result in ACCU
1.
T MD10 //Transfer result to MD10 (example: result = -1.5E+02).
Statement List (STL) for S7-300 and S7-400 Programming
3-12 A5E00706960-01