Floating-Point Math; Move; Convert - Siemens SIMATIC S7-200 Manual

S7-200 LAD instruction conversion

4.6 Floating-point math

4.6 Floating-point math
Table 4- 6 Floating-point math conversion
S7-200 instruction
ADD_R Add Real
SUB_R Subtract Real
MUL_R Multiply Real
DIV_R Divide Real
SQRT Square Root
SIN Sine
COS Cosine
TAN Tangent
LN Natural logarithm
EXP Natural Exponential
PID Proportional Integral Derivative loop
4.7

Move

Table 4- 7 Move conversion
S7-200 instruction
MOV_B, MOV_W, MOV_DW
BLKMOV_B, BLKMOV_W, BLKMOV_D
SWAP
MOV_BIR Move Byte with Immediate Read
MOV_BIW Move Byte with Immediate Write
4.8

Convert

Table 4- 8 Convert conversion
S7-200 instruction
B_I Byte to Integer
I_B Integer to Byte
I_DI Integer to Double Integer
DI_I Double Integer to Integer
DI_R Double Integer to Real
BCDI BCD to Integer
I_BCD Integer to BCD
ROUND Round to integer
26
Converted? S7-1200 instruction
Yes ADD
Yes SUB
Yes MUL
Yes DIV
Yes SQRT
Yes SIN
Yes COS
Yes TAN
Yes LN
Yes EXP
No
Converted? S7-1200 instruction
Yes MOVE Data copy with source unchanged
Yes BLKMOVE
Yes SWAP
Yes MOVE with immediate address
Yes MOVE with immediate address
Converted? S7-1200 instruction
Yes CONVERT
Yes
Yes
Yes
Yes
Yes
Yes
Yes ROUND
SIMATIC S7-200 to SIMATIC S7-1200 software conversion tool
Manual, 1/2010