Fieldbus PN/IO subnet on the same internal PN/IO interface of the IO controller (e.g. CPU 410‑5H: X8
connection)
● ③: 1 PROFINET IO subnet with MRP
● ④: 2 PROFINET IO subnets
● ⑤: 2 PROFINET IO subnets with MRP
Distributed I/O IO devices based on ET 200SP HA:
● ③: With one interface module to a single IO controller
● ④: With two interface modules to a redundant IO controller
● ⑤: With two interface modules to a redundant IO controller
Plant planning
4.9 Time synchronization and time stamping
ET 200SP HA Distributed I/O system
System Manual, 08/2019, A5E39261167-AD 57
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