Siemens SIMATIC S7-1500 System Manual page 227

Figure 9-2 RH_CTRL instruction
Example: Disabling/enabling SYNCUP for a baggage handling system
Automation task
A baggage handling system at an airport is used to distribute pieces of baggage. When a
flight lands, all baggage is loaded onto the baggage handling system. The baggage passes
through a scanner at high speed. The scanner checks the destination of the baggage:
• If a piece of baggage has reached its destination airport, the baggage handling system
forwards it directly to baggage claim.
• If a piece of baggage has not reached its final destination, the system immediately
redirects it towards the connecting flight.
①
②
Figure 9-3 Airport baggage handling system
To ensure high availability for the baggage handling system, you use an S7‑1500R/H
redundant system as controller. If one of the CPUs fails (loss of redundancy), the S7‑1500R/H
redundant system switches from the RUN-Redundant system state to RUN-Solo. A CPU
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD
Scanner
Deflector
9.4 Special instructions for S7-1500R/H redundant systems
Basics of program execution
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