Connect to Siemens S7-1200

Username/Password Login

1. Select the target PLC in the TIA V16 programming software, right-click and open the Properties -> General -> OPC UA.

2. Open the Activate OPC UA Server option.

3. Check the required security policy in the Security policies available on the server list. If the security requirement is not particularly high, you can just check No security, so that the speed of reading and writing requests will be faster.

4. Check Automatically accept client certificates during runtime in the Trusted client section.

5. Turn off Enable guest authentication in the Guest authentication section.

6. Check the Enable username and password authentication box in the Username and password authentication section.

7. Adding a user name and password to the User Management list.

8. Downloading programs to the PLC.

9. Neuron adds a new southbound OPC UA device, open Device Configuration, fill in the Endpoint URL of the target PLC, user name/password, no need to add certificate/key.

Test Data List

Name	Address	Attribute	Date type
DeviceManual	3!DeviceManual	Read	STRING
DeviceRevision	3!DeviceRevision	Read	STRING
EngineeringRevision	3!EngineeringRevision	Read	STRING
HardwareRevision	3!HardwareRevision	Read	STRING
OperatingMode	3!OperatingMode	Read	INT32
OrderNumber	3!OrderNumber	Read	STRING
RevisionCounter	3!RevisionCounter	Read	INT32
SerialNumber	3!SerialNumber	Read	STRING
SoftwareRevision	3!SoftwareRevision	Read	STRING