PROFINET Communication
‑80‑
3. MRP provides a typical reconstruction time of 200 ms and supports up to 50 devices
in each ring network. To avoid interference to PROFINET communication during
ring network reconstruction, set the PROFINET watchdog time of the I/O device to
be greater than 200 ms.
Select an I/O device port, choose "Properties" > "IO cycle", and adjust the "Update
time" to an appropriate value so that the "Watchdog time" is greater than 200 ms.