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5. Programming on the device
5.6 Working with function blocks
Example: Timing relay function block
Function block:
timing relay
Switch function:
On-delayed with random time
Time range:
M:S (Minute:Second)
Reference time >I1:
20 min 30 s
Actual time QV>:
Copied to MD96
Assigning operands at a manufacturer function block's input
The following operands can be assigned to the input of a manufacturer function block:
l
Constants, e.g.: 42,
l
Markers such as MD, MW, MB,
l
Analog output QA,
l
Analog inputs IA,
l
The QV outputs of all manufacturer function blocks
You can set the parameters of the function block as follows:
Use the
cursor buttons to scroll through the function block inputs' con-
stants.
Change the values for a parameter set:
OK button: Switches to input mode.
Change whole number places with the
cursor buttons.
Use the
cursor buttons to change the value of a whole number place.
OK button: Saves the constant immediately
Press the ESC button to leave the parameter display.
ESC button:
Keep the previous setting and exit the parameter display.
Ensure that the input of a function block is not assigned imper-
missible values during operation.
This risk exists if you apply negative values to an input even though the corresponding
function block only accepts positive values.
If, for example, the T timing relay function block is driven with a negative time ref-
erence, it will no longer switch as expected.
You should therefore take care to exclude such situations, as the easyE4 device cannot
foresee these when the parameters are assigned.
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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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