Basics of program execution
7.4 Special instructions for S7-1500R/H redundant systems
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA
157
Reference
Additional information on organization blocks is available in the STEP 7 online help.
7.4
Special instructions for S7-1500R/H redundant systems
7.4.1
Disabling/enabling SYNCUP with the RH_CTRL instruction
Introduction
You use the "RH_CTRL" instruction to disable SYNCUP or to enable the execution of the
SYNCUP for the S7-1500R/H redundant system. The disable applies:
●
Until you cancel it with the "RH_CTRL" instruction or
●
Until the S7-1500R/H redundant system switches to the STOP system state
Figure 7-2
RH_CTRL instruction
Summary of Contents for Simatic S7-1500H
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