Siemens SENTRON PAC3200T, Product Manual, Page: 29 / 136

Description
2.7 Communication
Equipment Manual, 09/2022, L1V30415168B-03
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2.7 Communication
The device is equipped with the Ethernet interface.
The Ethernet interface facilitates communication via the following protocols:
•
Modbus TCP
The device can be configured via Modbus TCP and measured data read out.
• Web server (HTTP)
This protocol can only be used to read out the measured values via the web browser.
• SNTP (simple network time protocol)
The SNTP is used to automatically synchronize the internal clock with a time server within
the network.
Three types of function are available:
– No synchronization
– Date/time synchronization via device request
The IP address of an NTP server must be configured. With this, the device automatically
requests the current time from the server and resets its internal clock, if necessary.
– Date/time-of-day synchronization by SNTP server broadcast
The device receives time frames 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 device only responds to
these frames. Furthermore, it can itself send a request to the server if necessary.
• DHCP
DHCP stands for "dynamic host configuration protocol", which is a protocol for obtaining
network settings from a DHCP server.
The network settings are assigned automatically.