Siemens CPU 412-1 Instruction Manual page 24

Execution Time for Area-Crossing Register-Indirect Addressing
Example: A [AR1, P#23.1] ... with I 1.0 in AR1 with CPU 416
Step 1: Load the contents of AR1, and increment them by the offset 23.1 (the time required is in the table on page 20)
Address is in ...
AR1/AR2 (area-crossing)
Step 2: AND link of the input addressed this way (see page 25 for the execution time)
Total execution time:
0.00 ms
0.05 ms
+
0.05 ms
S7-400 Instruction List
A5E00267845-01
:
:
Typical Execution Time in ms
Direct Addressing
0.04/0.05
:
Examples of Calculations
Execution Time in ms
:
0.00
:
Indirect Addressing
0.05+
Time for A I
:
22