Siemens SIMATIC IM 151/CPU - Page 146

Instruction List
B-12
ET 200S Interface Module IM 151/CPU
A5E00058783-01
B.5.4 Example of Addressing Via Parameters
Example
A parameter ... with I 0.5 in the block parameter list
Step 1
Loading the I 0.5 addressed via the parameter.
Address Is In ... Execution Time in s
: :
: :
Parameter (double word) 4.3
Step 2
ANDing of the addressed input (the execution time is in Appendix B.6 and the
following chapters).
Typical Execution Time in s
Direct Addressing Indirect Addressing
0.3
:
1.6+
:
Time for
A I
Total Execution Time
This results in a total execution time of:
Total execution time:
4.3 s
+ 1.6 s
= 5.9 s