Related to this topic:
https://www.advancedhmi.com/forum/index.php?topic=2532.0For bridging multiple addresses try using the attached ComBridge2 component.
You would normally add your 1st PLC's addresses to the PLCAddressValueItems collection.
The trick is to use the "Name" property of each address to input the 2nd PLC's target address to write.
If you set the NumberOfElements value to higher than 1, for any address, then all the received values for that particular address will be written to the range starting with the target PLC's destination address.
A simple test could be performed with, for example, 2 instances of a Modbus simulator (one using TCP and the other using RTU mode with a pair of virtual COM ports or maybe both using TCP mode but on different ports).