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Description
2.5 Communication
PAC2200
Equipment Manual, 12/2019, L1V30415167B-03
27
2.5.1
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. With this, the PAC2200
automatically requests the current time from the server and resets its internal clock, if
necessary.
●
Date/time synchronization via SNTP server broadcast
The PAC2200 receives broadcast time frames, which are sent from an NTP server. This
is practical, if the internal clocks in several devices in the same network
should be synchronous.
If the IP address of the NTP server has been configured, the PAC2200 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.
2.5.2
RS485
Enables communication via MODBUS RTU protocol. This interface features simple topology
and high immunity against EMC interference.
The data is transmitted differentially via two wires A and B. The third wire "COM" serves as
the common ground potential.
Grounding of the cable shield:
The serial Modbus data cable should be shielded. The shield should be connected to
protective ground at one end of the cable at least.
Grounding of the COM line:
Содержание SENTRON PAC2200
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Страница 8: ...Table of contents PAC2200 6 Equipment Manual 12 2019 L1V30415167B 03 ...
Страница 14: ...Introduction 1 6 Risk of manipulation PAC2200 12 Equipment Manual 12 2019 L1V30415167B 03 ...
Страница 40: ...Description 2 5 Communication PAC2200 38 Equipment Manual 12 2019 L1V30415167B 03 ...
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Страница 64: ...Operation 5 4 Protection against manipulation PAC2200 62 Equipment Manual 12 2019 L1V30415167B 03 ...
Страница 84: ...Service and maintenance 7 5 Warranty PAC2200 82 Equipment Manual 12 2019 L1V30415167B 03 ...
Страница 96: ...Technical specifications 8 2 Labeling PAC2200 94 Equipment Manual 12 2019 L1V30415167B 03 ...
Страница 98: ...Dimension drawings 9 1 Dimensional drawings PAC2200 96 Equipment Manual 12 2019 L1V30415167B 03 ...
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