Some questions about Beckhoff twincat during commissioning

When the two network ports of CX5020 work simultaneously using Modbus TCP and ADS, they will interfere with each other. TCP is not working when ADS is connected. But CX2020 is no problem.

Using an older Image, there is no problem using ADS for both ports simultaneously.
Changed to half duplex, no problem.
If two network ports are not in the same network segment, there is no problem.

When communicating with a free port, sending more than 300 bytes cannot proceed normally?

Open the library file and modify the size of the Buffer array

How to upgrade the PLC program online for machines that have already been shipped?

There are three methods: VPN, TcpIp, and IoT. The latter two are in the form of Copy files, either manually or automatically.

EL6022 uses Modbus to write slave data, with a maximum of 6 words written at a time?

After test, it was found that if the baud rate exceeds 19.2kHZ, there will be problems.

How to bridge some slave stations in EtherCAT chain topology without affecting the operation of other slave stations?

It can be achieved using the hot link function. It's best to unplug the code from the station, otherwise you'll have to write E2ROM

Controllers on the ARM platform, such as CX80x0 and CX90x0, use LReal long real numbers for operations in PLC programs, which is more efficient than using Real type operations.

It's true.

OMRON new version servo, if TC2 control is used, there will be issues with the highest version 2258, which needs to be returned to 2251 or 2252