Introduction

For OPC UA, the unit that represents the information and functions of the target device is called as “node”. Each node has various parameters (also called as Attribute or Property), and each content of parameter shows actual information of target device. Also tying a node and other node with a relationship of “Reference” is how node is structured. The space in which such structured nodes are (conceptually) arranged is called the address space. Address space is a where data used by OPC UA Sever is placed.

CAUTION

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When changing structure of Robot or option (DU, I/O board tec.), the node ID may be changed. After changed the structure, check for the node ID.