Siemens SIMATIC RF650R

SIMATIC RF650R/RF680R/RF685R
Configuration Manual, 03/2018, C79000-G8976-C386-06
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Programming via the OPC UA interface
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This section is intended only for OPC UA users.
This section describes the use of the OPC UA interface.
Description of OPC UA
OPC UA is a standardized communications protocol. It allows data exchange between all
types of industrial devices that support OPC UA and that are integrated in the same network.
In this context, devices that provide or publish data, information and command calls are
referred to as OPC UA servers. Devices that use this data, information and these command
calls are known as OPC UA clients.
The standard "OPC Unified Architecture for AutoID Companion Specification" was defined
by the organizations "AIM Germany" and "OPC Foundation". This describes the connection
of identification devices via OPC UA. The identification devices can be subdivided as follows:
● Text recognition devices (OCR)
● Optical readers (e.g. barcode),
● RFID readers and
● Devices for localization (RTLS).
Figure 11-1 Identification devices in an OPC UA network
All SIMATIC RF600 readers have OPC UA servers implemented with a range of functions
defined by "OPC Unified Architecture for AutoID". For this "OPC Unified Architecture for
AutoID" defines the "AutoIdDevice" and derived from this the "RfidReaderDevice". With the
RF600 readers, each read point stands for an independent "AutoIdDevice" or
"RfidReaderDevice".