Connection Resources Of The Redundant System S7-1500R/H - Siemens SIMATIC S7-1500 Function Manual

Communication with the redundant system S7-1500R/H

13.4 Connection resources of the redundant system S7-1500R/H

13.4 Connection resources of the redundant system S7-1500R/H
Maximum number of connection resources of the S7-1500R/H redundant system
The S7-1500R/H redundant system supports a maximum number of connection resources.
The CPU used determines the maximum number of resources for the redundant system:
● CPU 1513R: max. 88 connection resources
● CPU 1515R: max. 108 connection resources
● CPU 1517H: max. 288 connection resources
Allocation of connection resources
Communication connections occupy communication resources in the S7-1500R/H redundant
system.
Each communication connection to the redundant system S7 1500R/H occupies connection
resources in the S7 1500R/H station. The S7-1500R/H station comprises the hardware setup
of both CPUs of the redundant S7-1500R/H system.
Depending on the IP address used, a communication connection also uses connection
resources in one or both CPUs of the redundant S7-1500R/H system. The S7-1500R/H
station can also be used to establish a communication connection.
The following table shows in which CPU a communication connection occupies connection
resources depending on the IP address used.
Connect via...
a system IP address
a device IP address of the
CPU with redundancy ID 1
a device IP address of the
CPU with redundancy ID 2
332
Connection resources of the
station
X
X
X
Connection resources CPU
with redundancy ID 1
X
X
-
Function Manual, 11/2019, A5E03735815-AH
Connection resources CPU
with redundancy ID 2
X
-
X
Communication