Restrictions Compared To The S7-1500 Automation System - Siemens Simatic S7-1500R System Manual

Special case: Operating R/H CPU individually
You can operate an R/H CPU as a single CPU. If you do, please note the following:
● You always need to configure two R- or H-CPUs for S7-1500R/H even if you only set up
one.
● The MAINT LED on the CPU is always yellow (maintenance demanded):
– The R/H system is not in redundant mode.
– No partner CPU found.
Software requirements
Table 3- 2
Function
STEP 7
3.2

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 3- 3
Property
Fail-safe modules
Power segment overview with system
power supply
Series machine projects, configura-
tion control (option handling)
Central I/O
Cycle and response times
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA
3.2 Restrictions compared to the S7-1500 automation system
Software requirements
Requirement
SIMATIC STEP 7 Professional, V15.1 or later
Hardware restrictions
Restriction
Fail-safe modules are not supported in the S7-1500R/H re-
dundant system.
Not supported
Not supported
Central I/O is not supported in the hardware configuration of
the S7-1500R/H redundant system.
Exceptions:
Load power supply (PM)
•
System power supply (PS); the PS cannot be configured.
•
Longer cycle and response times: You can find additional
information in the Cycle and response times
(https://support.industry.siemens.com/cs/ww/en/view/591935
58) function manual.
Application planning
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