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12. Faults
12.4 Functionality of the NET faulty
12.4 Functionality of the NET faulty
NOTICE
You can make a visual check the functionality of the NET by means of
the NET LED and in the circuit diagram via diagnostics bit ID01-ID08.
Checking the functionality of the NET using the NET LED
Status of the
NET LED
Description
Off
NET not operational, fault in configuration
Continuous light
NET station fault - possible causes:
l
Net is initialized and at least one station has not been detected. Check the plug-in
connections.
l
You have modified the NET ID or baud rate for at least one station after the con-
figuration has been completed. Change the configuration.
l
You have deleted the program on a NET station and thus also its NET configuration.
Reconfigure the NET via station 1.
l
You have expanded an existing NET station and replaced it with a new device
which cannot be assigned parameters.
Flashing
NET operating fault-free
12.4.1 Monitoring based on diagnostic bits
Diagnostic bits ID01 - ID08 provide information on the presence or absence of NET sta-
tions. The state of the diagnostic bits is defined by the reception of a sign of life signal
that every NET station sends.
If the sign of life signal of a configured NET station is no longer received, the diagnostics
bit ID01-ID08 for the missing NET station is immediately set to 1 for all remaining sta-
tions.
The sign of life signal is sent cyclically depending on the baud rate.
The presence of the configured NET stations is evaluated at the following time intervals:
Baud Rate
Station must send a “sign of life”
every ...
Station detects a missing sign
of life signal from …
[Kbit/s]
[ms]
[ms]
1000
60
180
500
60
180
250
120
360
125
240
720
50
600
1800
20
1500
4500
10
3000
9000
Table 107: NET station time intervals
easyE4
11/18 MN050009 EN www.eaton.com
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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...
Страница 169: ...easyE4 11 18 MN050009 EN www eaton com 165...
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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