Hi Experts,
I have a question about IO redundancy setting.
In this setting , I found if I diactivated the primary OI server ,the system would read data from the secondary source automatically.
But if i disabled the PLC in OI Server ,the system would lost data and couldn't read data from secondary source.
The function I want to realize is that if the plc in the primary OI Server has issue ,the system will switch to the secondary source and read data.
And if the plc in the primary OI server is recovery ,the system will switch back and read data from the primary source.
I know it needs to input some conditions in the express in failover setting, any suggests about the expression?
Thanks in advanced.
Best Regards,
Zhen Shang