Slot-Oriented Addressing; Structure Of The Default Address Area; Slots On The Et 200S - Siemens SIMATIC IM 151/CPU Manual

Addressing
2.1

Slot-Oriented Addressing

Slot-Oriented Address Allocation
In slot-oriented addressing (default addressing) each slot number in a module is
allocated an address area in the IM 151/CPU.
Depending on the type of the I/O module, the addresses are digital or analog (see
Table 2-1). The address allocation is not fixed and can be changed, but there is a
default address area.
0
127
Figure 2-1
Slot Assignment
The figure below shows an ET 200S configuration with digital electronic modules,
analog electronic modules, process-related modules and the slot assignment.
Figure 2-2
2-2
128 256
DP range
255

Structure of the Default Address Area

4 5

Slots on the ET 200S

1280
1279
Direct Communication
16 bytes per analog module
1 byte per digital module
or motor starter
6 7 8 9 10
SSI
ET 200S Interface Module IM 151/CPU
1535
Slot
A5E00058783-01