Siemens SIMATIC ET 200AL, System Manual

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Functions
5.2 Intelligent IO devices (I-devices)
PROFINET with STEP 7
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Function Manual, 05/2021, A5E03444486-AL
Automation task control of vehicles in a ride
In a ride (ghost train), the vehicles are connected as I-devices to a higher-level controller via
PROFINET.
Feature
The higher-level IO controller takes over the entire coordination and monitoring of the
vehicles in the station. Among other things, the higher-level IO controller registers the
following states:
•
When the vehicles are available in the station
• When the vehicles exit the station
As soon as passengers are seated in the vehicle and the vehicle is closed, the higher-level
IO controller issues the start signal.
Along the entire track, the vehicles are traveling independently and do not have a connection
to the higher-level IO controller. Because this state does not represent an error, no errors
should be signaled via the ERROR LEDs of the CPUs.
Solution
Depending on the position of the vehicle, inside or outside the station, the user program
enables or disables the I-device function in the I-device CPU of the vehicle. No diagnostics
were signaled via LED on the I-device CPU for enabling and disabling.