Bridge Wireless with two XBee-PRO RS-485.

Hello, I want to make two questions

Is it possible, make a bridge Wireless of two devices with protocol Modbus/RTU over RS485, using only as gateways the device XBee-PRO RS-485? This is an architecture of one PLC that is a Modbus/RTU master and a power analizer that is a Modbus/RTU slave.

Is it possible, make a mesh network of several devices with on master and a lost of slaves in Modbus/RTU using only as gateways the device XBee-PRO RS-485? This is an architecture of one PLC that is a Modbus/RTU master and several controllers that is a Modbus/RTU slave, installed in several cabinets.

Thanks for all.