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6. Function blocks
6.1 Manufacturer function blocks
Negative count direction
If the rising edge at channel B is detected before the rising edge at channel A, the
counter will count up. This means that the counter will be decremented by 1 after there
is a rising edge at channel A followed by a rising edge at channel B. The counter relay's
result will be decremented and output at output QV.
Figure 135: CI function block counting down; QV=QV-4
NOTICE
Avoid unforeseeable switching states.
Switch C, CF, CH, CI function blocks only at one single point in the pro-
gram.
Otherwise, previous counts will be overwritten.
The function block and its parameters
Function block inputs
Description
Note
(Bit)
EN
1: Activates the function block.
The checkbox for the
Function block release by EN
is necessary
parameter must first be enabled
SE
The starting value at SV is applied
whenever there is a rising edge at
this input
RE
Reset
1: QV=0
(DWord)
SH
Upper Threshold Value
Integer value range:
-2,147,483,648 to +2,147,483,647
SL
Lower threshold value
SV
Start value (Pre Set)
Assigning operands
You can assign the following operands to the function block inputs that are numeric
inputs.
Operands
Value inputs
Constant, timer constant
x
MD, MW, MB - Markers
x
238
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 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...
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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