Each type of client device is specific to a particular type of parent network. You cannot drag a ModbusAsyncDevice from a palette to a ModbusTcpGateway or a ModbusTcpGatewayDevice to a ModbusTcpNetwork. This is not a problem when working in the device manager for any of the three client networks, as the New window (used to add devices) automatically selects the proper child device component.
The three types of Modbus client devices are similar in that each has a single frozen Points device extension managed by the default Modbus Client Point Manager view. Each Points device extension supports the same type of proxy points, as well as preset and file record objects.
In addition to common Points slots, all three types of Modbus client devices provide similar properties. This includes overrides of network level Modbus Config settings, ping address setup for the parent network’s Monitor ping, device base address configurations for Modbus data items, and slots for configuring device-level polling.