Siemens SIMATIC ET 200SP Function Manual

Open User Communication
6.11 Secure Open User Communication
Communication
96 Function Manual, 11/2019, A5E03735815-AH
4. Set the parameters for secure communication in the "Start value" column.
– "ActivateSecureConn": Activation of secure communication for this connection. If this
parameter has the value FALSE, the subsequent security parameters are irrelevant.
You can set up a non-secure TCP or UDP connection in this case.
– "TLSServerReqClientCert": Request for an X.509-V3 certificate from the TLS client.
– "TLSServerCertRef": ID of the own X.509-V3 certificate.
Figure 6-16 Certificate handling from the perspective of the S7-1500 as TLS server
– "TLSClientCertRef": ID of the X.509-V3 certificate (or a group of X.509-V3 certificates)
that is used by the TLS server to validate TLS client authentication. If this parameter is
0, the TLS server uses all (CA) certificates currently loaded in the server certificate
store to validate the client authentication.
5. Create one of the instructions TSEND_C, TRCV_C or TCON in the program editor.
6. Interconnect the CONNECT parameter of one of the instructions TSEND_C, TRCV_C or
TCON with the tags of the data type TCON_QDN_SEC.
In the example below, the CONNECT parameter of the TCON instruction is
interconnected with the tag "DNS connectionSEC" (data type TCON_QDN_SEC).
Figure 6-17 TCON instruction

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