Restrictions Compared To The S7-1500 Automation System - Siemens SIMATIC S7-1500 System Manual

Application planning

5.2 Restrictions compared to the S7-1500 automation system

Requirements
Table 5-2 Requirements
Requirement
CPU 1513R-1 PN, CPU 1515R-2 PN, CPU 1517H-3 PN
CPU 1518HF-4 PN
S7-1500H(F):
• Support of system redundancy R1
• H-CPUs do not have to be part of a PROFINET ring or MRP
domain.
This allows additional topology variants, such as line topology or
setup without additional devices.
5.2 Restrictions compared to the S7-1500 automation system
Introduction
Please note the following restrictions with the S7-1500R/H redundant system compared to
the S7-1500 automation system.
Hardware restrictions
Table 5-3 Hardware restrictions
Property
Fail-safe modules
Series machine projects, configur­
ation control (option handling)
Centralized I/O
Cycle and response times
74
Restriction
No support for fail-safe modules on the 1513R-1 PN, 1515R-2 PN,
and 1517H-3 PN CPUs because no fail-safe variants of the CPUs are
available.
Fail-safe modules are only supported by the HF-CPUs.
Not supported
Centralized I/O modules are not supported in the hardware config­
uration of the S7-1500R/H redundant system.
Longer cycle and response times: You can find additional informa­
tion in the Cycle and response times
(https://support.industry.siemens.com/cs/ww/en/view/59193558)
function manual.
STEP 7 version
SIMATIC STEP 7 Professional,
V15.1 or later
SIMATIC STEP 7 Professional V17
or higher
SIMATIC STEP 7 Professional V18
or higher
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD