11. Connection to other devices
11.4 Modbus TCP
11.4 Modbus TCP
Only possible with easySoft 7.
11.4.1 General
Modbus TCP is a simple communication protocol that uses a client-server architecture
in order to make it possible for measuring and control systems (server) to com-
municate with higher-level control systems (client) and vice versa. Since the protocol is
based on TCP/IP and Ethernet, any device that supports the Internet protocol suite and
features an Ethernet port can implement it.
During communications, data is written as a payload in TCP/IP packets and transmitted
this way.
Please note that the easyE4 will only assume the functionality of a lower-
level Modbus TCP server, and not the higher-level client functionality.
Modbus TCP ensures communications with devices:
l
That do not necessarily have to be part of the easyE4 family of products
l
That are not found in a NET group
or
l
That do not implement NET
The most important functions include, but are not limited to:
l
Communications at the control level
l
Transmitting analog and digital values to higher-level control systems
l
Platform-independent communication
l
Communication with devices that are not part of the easyE4 series
easyE4
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Содержание easyE4 series
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Страница 22: ...0 1 About this manual 18 easyE4 11 18 MN050009 EN www eaton com...
Страница 40: ...1 easyE4 control relays description 1 10 Safety regulations 36 easyE4 11 18 MN050009 EN www eaton com...
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Страница 462: ...6 Function blocks 6 4 Timing and counter relay example 458 easyE4 11 18 MN050009 EN www eaton com...
Страница 490: ...7 System settings 7 16 Time and Date setting 486 easyE4 11 18 MN050009 EN www eaton com...
Страница 520: ...9 easyE4 inside 9 7 NET network 516 easyE4 11 18 MN050009 EN www eaton com...
Страница 524: ...10 Diagnostics messages of the operating system 10 2 Diagnostics buffer 520 easyE4 11 18 MN050009 EN www eaton com...
Страница 570: ...11 Connection to other devices 11 6 E mail function 566 easyE4 11 18 MN050009 EN www eaton com...
Страница 578: ...12 Faults 12 4 Functionality of the NET faulty 574 easyE4 11 18 MN050009 EN www eaton com...
Страница 582: ...13 Maintenance 13 3 Storage transport and disposal 578 easyE4 11 18 MN050009 EN www eaton com...
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