Commissioning
9.3 Commissioning procedure
S7-1500R/H redundant system
184
System Manual, 10/2018, A5E41814787-AA
9.3.2
First power-on of the CPUs
Requirements
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The SIMATIC S7-1500R/H redundant system has been installed.
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The system has been wired.
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The SIMATIC memory cards are in the CPUs.
Procedure
Proceed as follows to commission the CPUs:
1.
Switch on the system power supply and load power supply.
Result:
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The CPUs run a flash test:
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All LEDs flash at 2 Hz
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RUN/STOP LED flashes alternately yellow/green
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ERROR LED flashes red
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MAINT LED flashes yellow
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The CPUs run system initialization and evaluate the SIMATIC memory cards:
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RUN/STOP LED flashes yellow at 2 Hz
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When system initialization is complete, the CPUs switch to STOP:
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The RUN/STOP LED lights up yellow
9.3.3
CPU pairing
Introduction
Pairing is the mutual recognition of the two CPUs within a network. During pairing, the CPUs
exchange information for mutual identification. Example: Checking for matching article
number and firmware version.
Successful pairing of two CPUs is a fundamental requirement for redundant operation.
Requirement
For successful pairing, the CPUs must have the same firmware version and the same or
compatible article numbers.
An inadmissible version prevents the pairing of two CPUs, for example more than two R-
CPUs in the PROFINET ring. Pairing errors are reported in the diagnostics buffer.
Summary of Contents for Simatic S7-1500H
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