Siemens SIMATIC STEP 7 V5.2, Начало работы

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STEP 7 Getting Started
A5E00171228-01
3-1
3 Programming with Symbols
3.1 Absolute Addresses
Every input and output has an absolute address predefined by the hardware
configuration. This address is specified directly; that is, absolutely.
The absolute address can be replaced by any symbolic name you choose.
SF
BATF
DC 5V
FRCE
RUN
RUN P
RUN
STOP
M RES
STOP
ON
OFF
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
L+
L+
M
M
M
N
L+ L+
M
Digital input
module
Byte 1
Bits 0 to 7
Digital input
module
Byte 0
Bits 0 to 7
Digital output
module
Byte 4
Bits 0 to 7
Digital output
module
Byte 5
Bits 0 to 7
Bit 5
Absolute address: I 1.5
Byte 1
You should only use absolute programming if you do not
have to address many inputs and outputs in your S7
program.
Input