Siemens CPU 412-1 User Manual

Execution Times with Indirect Addressing1
20
S7-400 Instruction List
A5E00267845-01
The execution time for loading the address of the instruction from the various areas is shown in the following table.
Address is in ... Execution Time in s
CPU 412 CPU 414 CPU 416 CPU 417
Bit memory area M
Word
Double word
0.2
0.2
0.12
0.12
0.08
0.08
0.06
0.06
Data block DB/DX
Word
Double word
0.3
0.3
0.18
0.18
0.12
0.12
0.12
0.12
Local data area L
Word
Double word
0.2
0.2
0.12
0.12
0.08
0.08
0.06
0.06
AR1/AR2 (area-internal) 0.0 * 0.0 * 0.0 * 0.0 *
AR1/AR2 (area-crossing) 0.0 * 0.0 * 0.0 * 0.0 *
Parameter (word) ... for:
S Timers
S Counters
S Block calls
0.4
0.4
0.4
0.24
0.24
0.24
0.16
0.16
0.16
0.15
0.15
0.15
Parameter (double word) ... for
Bits, bytes, words
and double words
0.4 0.24 0.16 0.15
* Address registers AR1/AR2 do not need to be loaded in separate cycles for addressing.
The pages that follow contain examples for calculating the instruction run time for the various indirectly addressed instructions.

Siemens CPU 412-1 Specifications

General

Brand	Siemens
Model	CPU 412-1
Category	Computer Hardware
Language	English