Siemens SIMATIC ET 200AL System Manual page 1514

Number of connection resources of a station
Table 12- 1 Maximum number of connection resources supported for some CPU types
Connection resources of a
station
Maximum connection re-
sources of the station
of which reserved
of which dynamic
Connection resources of the
CPU
Max. additionally usable
connection resources by
plugging in CMs/CPs
Additional connection re-
sources CM 1542-1
Additional connection re-
sources CP 1543-1
Additional connection re-
sources CM 1542-5
Additional connection re-
sources CP 1542-5
The number of connection resources that a CPU or a communication module supports is
specified in the device manuals in the Technical Specifications.
Example
You have configured a CPU 1516-3 PN/DP with a CM 1542-1 communication module and a CP
1542-5 communication processor.
• Maximum connection resources of the station: 256
• Available connection resources:
– CPU 1516-3 PN/DP: 128
– CM 1542-1: 64
– CP 1542-5: 16
– Total: 208
The setup provides 208 connection resources. By adding further communication modules,
the station can support a maximum of 48 additional connection resources.
Communication
Function Manual, 05/2021, A5E03735815-AJ
1511 1512C
1511C
1513
96 128
86 118
64 88
32 40
12.1 Connection resources of a station
1515 1516
192 256
10
182 246
108 128
84 128
64
118
40
16
Connection resources
1517 1518
320 384
310 374
288 320
32 64
393