![background image](http://html1.mh-extra.com/html/eaton/easye4-series/easye4-series_manual_3910990509.webp)
9. easyE4 inside
9.3 Timing characteristics of expansion devices
9.3 Timing characteristics of expansion devices
When the outputs and inputs on expansion devices are written to and read respectively
via easyConnect, the corresponding process will not be synchronized with the program
cycle. In fact, if the easyConnect cycle is more than twice as fast as the program cycle,
the inputs and outputs will be refreshed with every program cycle.
If, on the other hand, the easyConnect cycle is slower than half the program cycle, the
inputs and outputs may be refreshed after two program cycles instead.
Digital expansions
l
The time it takes to write data to the outputs on a digital expansion and read its
inputs is typically 0.6 ms.
l
Eleven digital expansion devices typically require 6 ms in order for all outputs to be
written and all inputs to be read.
Analog expansions
l
The data for an analog device with four inputs and two outputs will typically be
refreshed in 1.5 ms.
As for mixes of digital and analog devices, the following example is meant to illustrate
the corresponding time response: With two digital expansion devices and two analog
expansion devices, the easyConnect cycle would be 4.1 ms.
easyE4
11/18 MN050009 EN www.eaton.com
505
Содержание easyE4 series
Страница 1: ...Manual 11 18 MN050009 EN easyE4 Manual...
Страница 4: ......
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...
Страница 614: ...610 easyE4 11 18 MN050009 EN www eaton com...