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Siemens CPU 412-1 Instruction Manual Page 22

S7-400; cpu 412 series; cpu 414 series; cpu 416 series; cpu 417 series;.
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The execution time for loading the address of the instruction from the various areas is shown in the following table.
Address is in ...
Bit memory area M
Word
Double word
Data block DB/DX
Word
Double word
Local data area L
Word
Double word
AR1/AR2 (area-internal)
AR1/AR2 (area-crossing)
Parameter (word) ... for:
S
Timers
S
Counters
S
Block calls
Parameter (double word) ... for
Bits, bytes, words
and double words
*
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.
S7-400 Instruction List
A5E00267845-01
Execution Times with Indirect
Execution Time in ms
CPU 412
CPU 414
0.2
0.12
0.2
0.12
0.3
0.18
0.3
0.18
0.2
0.12
0.2
0.12
0.0 *
0.0 *
0.0 *
0.0 *
0.4
0.24
0.4
0.24
0.4
0.24
0.4
0.24
Addressing1
CPU 416
CPU 417
0.08
0.06
0.08
0.06
0.12
0.12
0.12
0.12
0.08
0.06
0.08
0.06
0.0 *
0.0 *
0.0 *
0.0 *
0.16
0.15
0.16
0.15
0.16
0.15
0.16
0.15
20

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