Siemens Simatic S7 Series

References
E.4 Instructions
S7-200 SMART
698 System Manual, 09/2015, A5E03822230-AC
Math, increment, and decrement instructions
STL
Description
+I IN1, OUT
+D IN1, OUT
+R IN1, OUT
Add Integer, Double Integer or Real
IN1+OUT=OUT
-I IN1, OUT
-D IN1, OUT
-R IN1, OUT
Subtract Integer, Double Integer, or Real
OUT-IN1=OUT
MUL IN1, OUT
Multiply Integer (16*16->32)
*I IN1, OUT
*D IN1, OUT
*R IN1, IN2
Multiply Integer, Double Integer, or Real
IN1 * OUT = OUT
DIV IN1, OUT
Divide Integer (16/16->32)
/I IN1, OUT
/D,IN1, OUT
/R IN1, OUT
Divide Integer, Double Integer, or Real
OUT / IN1 = OUT
SQRT IN, OUT
Square Root
LN IN, OUT
Natural Logarithm
EXP IN, OUT
Natural Exponential
SIN IN, OUT
Sine
COS IN, OUT
Cosine
TAN IN, OUT
Tangent
INCB OUT
INCW OUT
INCD OUT
Increment Byte, Word or DWord
DECB OUT
DECW OUT
DECD OUT
Decrement Byte, Word, or DWord
PID TBL, LOOP
PID Loop
Timer and counter instructions
STL
Description
TON Txxx, PT
TOF Txxx, PT
TONR Txxx, PT
BITIM OUT
CITIM IN, OUT
On-Delay Timer
Off-Delay Timer
Retentive On-Delay Timer
Beginning Interval Timer
Calculate Interval Timer
CTU Cxxx, PV
CTD Cxxx, PV
CTUD Cxxx, PV
Count Up
Count Down
Count Up/Down