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9. easyE4 inside
9.1 Program execution
puts
NET sta-
tions
inputs
During this time, the easyE4 device passes through six segments in succession.
If the operands of the inputs and outputs are addressed in the easyE4, the signal states
of the digital inputs/outputs are not scanned but a memory range in the device system
memory is accessed. This memory range is called the process image. The process
image is divided into two sections: the process image for the inputs and the process
image for the outputs.
Segment 1 - 4
The easyE4 device evaluates the contact fields within the first four segments. The eval-
uation starts in the first segment in circuit diagram line 1 and continues from top to bot-
tom until circuit diagram line n is reached.
The easyE4 device then moves to the next contact segment and continues to evaluate
from top to bottom until it has reached the last contact in the fourth segment. During this
process it checks whether contacts are switched in parallel or in series and saves the
switching states of all contact fields.
Segment 5
In the fifth segment the easyE4 device assigns all coils in one pass, from the circuit dia-
gram line 1 - n, with the new switch states from the process image of the outputs.
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easyE4
11/18 MN050009 EN www.eaton.com
Содержание easyE4 series
Страница 1: ...Manual 11 18 MN050009 EN easyE4 Manual...
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Страница 16: ...12 easyE4 11 18 MN050009 EN www eaton com...
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...
Страница 594: ...590 easyE4 11 18 MN050009 EN www eaton com...
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