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11. Connection to other devices
11.3 Setting up a NET
11.3 Setting up a NET
NET - a group
A NET is a group that is made up of up to eight stations and that uses a special protocol
for the device series in order to allow for communications via Ethernet connections.
The name "NET" refers to Ethernet/UDP-based communications between the easyE4
devices. It was designed specifically with the needs of straightforward transfers
between easyE4 devices in mind. Within a NET, every device has read access to the
NET operands of any other device in its group. In addition to this, data can be trans-
ferred both cyclically and acyclically.
Please note that nodes from different groups cannot communicate directly with each
other.
Between groups
If, however, you want devices to be able to communicate across groups, you will need
to use a coordinator device that controls the corresponding communication with Mod-
bus TCP.
A total of ten NET groups (groups 1 through 10) can be run on a single Ethernet network
at one time.
Ethernet network
↑
↑
↑
↑
↑
↑
↑
Module
Module
Module
Stations…
Module
Module
Module
NET-ID 1
NET-ID…
NET-ID 8
NET-ID…
NET-ID 1
NET-ID…
NET-ID 8
NET group 1
NET group…
NET group 10
NET uses UDP protocols that send unconfirmed broadcast frames; accordingly, the
devices in the NET group must be located on the same subnet. Connections through a
router are not allowed, as broadcast frames will normally be unable to pass through a
router.
Figure 253: NET diagram
All easyE4 base devices feature an Ethernet port that can be simultaneously used for all
communications, e.g., web server, Modbus TCP, e-mail, and programming the easyE4.
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...
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Страница 582: ...13 Maintenance 13 3 Storage transport and disposal 578 easyE4 11 18 MN050009 EN www eaton com...
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