Redundancy of CI867
Between fails covered in redundancy Modbus in CI867, is it include timeout for response? The redundancy could fail if the two modules are connected to the same switch (CH1 from each module is connected to switch)?
I had one experience using CI867 Redundancy and HPG800.
Considere the following recommendations:
1. Configure as easy as possible the switch device. Disable STP, RSTP, IGMP functions.
2. As you refer, when you have a single CI867 and make a controller download, generally the Modbus communication falls few seconds, the redundancy Modbus covers this.
3. Modbus IP Direction on both CI867 are different, those parameters are configured in Control Builder M using "Backup IP Address Offset", in other words, if you assign 18.104.22.168 as main IP direction and you want assign 22.214.171.124 as redundant IP direction, you must put 0.0.0.4 in "Backup IP Address Offset".