Siemens SIMATIC ET 200SP System Manual

Commissioning
11.10 Time synchronization
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ
223
Changing the IP address of an NTP server in the user program
Automation task
You change the NTP server in your network. The new NTP server has the address
"192.168.1.10".
You want to change the IP address of the NTP server with which your ET 200SP CPU
synchronizes via the user program.
The example shows how you change the IP address of the NTP server to "192.168.1.10"via
the user program with the instruction "T_CONFIG".
Conditions and parameters
Requirements:
● You have enabled the option "Enable time synchronization via NTP server" for your CPU
in STEP 7.
● You have configured the following NTP servers in STEP 7: Server 1 "192.168.1.15"
To change the IP addressed for NTP servers, use the following block parameter of the
"T_CONFIG" instruction:
● Req: A positive edge at the block parameter "Req" starts a job of the "T_CONFIG"
instruction.
● Interface: Enter the hardware identifier of the PROFINET interface 1 of the CPU at the
"Interface" block parameter. In this example, the HW ID is "64".
● Conf_Data: Area in which you save the IP addresses of the NTP server. Use the data
type "IF_CONF_NTP" for this purpose.

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