OPCUA-Modbus test instructionAlotcer industrial gateway supports standard embedded OPC UA protocol, which can convert PLC device data into standard OPC protocol data, and realize the function of OPC system to access diversified PLC device data. Currently, it can be connected to protocol devices such as Modbus RTU, Modbus TCP, and Modbus RTU Over TCP.Test environment:LAN test, router local IP (192.168.1.1), OPCUA client (192.168.1.144), Modbus simulation tooltest tools:1. Modbus Salve --- Modbus equipment simulation debugging tool2. UaExpert --- OPCUA's GUI toolTesting process:1. Add Modbus type devices (ModbusRtu, ModbusTCP, ModbusRtuOverTCP) in router interface configuration, add device register mapping table (format: register name, data type, register address, register length; data type selection: SByte|Byte|Int16|UInt16|Int32 |UInt32|Int64|UInt64|Float|Double|StringSTRING type is string length, other types greater than 1 will generate an array; eg:reg1,String,1,6;)2. Set OPCUA server port (default 4840, can be changed according to needs, be careful not to conflict with other ports) 3. Modbus Salve settingsDevice1 Modbus RTU setting screenshot Device2 Modbus TCP setting screenshot Device3--Modbus Rtu Over TCP setting screenshot 4. OPCUA client configuration 5. After connecting to the OPCUA server, the client generates a device file (registered mapping file), and pulls the file to the Data Access View interface (the data will change with the Modbus device data)