Siemens SIMATIC ET 200SP Function Manual

OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
Communication
240 Function Manual, 11/2019, A5E03735815-AH
Monitored Item Service Set
CreateMonitoredItems
ModifyMonitoredItems
DeleteMonitoredItems
SetMonitoringMode
SetTriggering
Subscription Service Set
CreateSubscription
ModifySubscription
DeleteSubscriptions
Publish
Republish
SetPublishingMode
9.3.6.6 Subscription diagnostics
Information about a subscription
S7-1500 CPUs as of firmware version V2.8 are able to create an entry in the diagnostic
buffer at state changes of a subscription.
The diagnostic buffer displays the new state; exception: "KeepAlive".
Requirement
In the OPC UA properties of the CPU, the option "Subscriptions: Change of status" (OPC UA
> Server > Diagnostics) is selected.
Example
An OPC UA client is connected to an S7-1500 CPU as OPC UA server and generates a
subscription in the server.
The diagnostic options for subscriptions are selected in the OPC UA properties of the CPU.
The "Creating" and "Normal" states are entered one after the other with the corresponding
subscription ID in the diagnostic buffer.

Siemens SIMATIC ET 200SP Specifications

General

System Type	Distributed I/O System
Mounting	DIN Rail
Communication Protocol	PROFINET, PROFIBUS
IP Rating	IP20
Category	I/O Systems
Supply Voltage	24 V DC
Modularity	Yes
Hot Swapping	Yes
Storage Temperature	-40°C to +70°C
Digital Inputs	Yes
Digital Outputs	Yes
Analog Inputs	Yes
Analog Outputs	Yes
Communication Interface	PROFINET, PROFIBUS
Number of Modules	Up to 64
Relative Humidity	5 to 95% (non-condensing)
Operating Temperature	-25°C to +60°C