Siemens SENTRON PAC2200CLP, Руководство по эксплуатации продукта, Страница: 38 / 130

Description
2.6 Communication
PAC2200CLP
36
Equipment Manual, 06/2021, L1V30820585B-02
2.6 Communication
2.6.1 Ethernet
Permits communication via the following protocols:
•
Modbus TCP
The device can be configured via Modbus TCP
•
Web server (HTTP)
Protocol can be used to read out the measured values via web browser.
•
SNTP
The SNTP (Simple Network Time Protocol) is used to automatically synchronize the internal
clock with a time server within the network.
Three function modes are available:
•
No synchronization.
• Date/time synchronization via device request
The IP address of an NTP server must be configured. Here, the PAC2200CLP automatically
requests the current time from the server and resets its internal device clock if necessary.
• Date/time synchronization via SNTP server broadcast
The PAC2200CLP receives broadcast time telegrams which are sent from an NTP server.
This is practical if the internal clocks of several devices in the same network need to
remain synchronized.
If the IP address of the NTP server has been configured, the PAC2200CLP only responds to
these telegrams. Furthermore, it can send a request to the server if necessary.
•
DHCP
Stands for "Dynamic Host Configuration Protocol". Protocol for obtaining network settings
from a DHCP server. Network settings are assigned automatically.