Siemens CPU 412-1 User Manual

Registers
13
S7-400 Instruction List
A5E00267845-01
Address Registers AR1 and AR2 (32 Bits)
The address registers contain the area-internal or area-crossing pointers for instructions using indirect addressing. The address registers
are 32 bits long.
The area-internal and/or area-crossing pointers have the following syntax:
• Area-internal pointer 00000000 00000bbb bbbbbbbb bbbbbxxx
• Area-crossing pointer yyyyyyyy 00000bbb bbbbbbbb bbbbbxxx
Legend: b Byte address
x Bit number
y Area identifier
(see “Examples of Addressing”)

Siemens CPU 412-1 Specifications

General

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