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6. Function blocks
6.1 Manufacturer function blocks
Period duration to minimum ON duration ratio
The ratio of the period duration/minimum on duration (P/M) determines which per-
centage of manipulated variables have no effect.
The minimum on duration must be set as low as possible so that P/M is as high as pos-
sible.
If, however, a very short on duration has no effect on the connected actuator, it is advis-
able to suppress these short on phases in order to reduce the load on the hardware. In
this case, the period duration should not be set too low.
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
NB, NW, ND - NET markers
x
nNB, nND, nND- NET markers
NET stations n
x
IA - Analog input
x
QA - Analog output
x
QV - QV - Numeric output of a FB
x
You can assign the following operands to the function block inputs that are bit inputs:
Operands
Bit inputs
Constant 0, constant 1
x
M – Markers
x
RN - Input bit via NET
x
SN - Output bit via NET (send)
x
N - Net marker bit
x
nN - NET marker bit NET station n
x
ID: Diagnostic alarm
x
LE - Output backlight
x
P buttons
x
I - Bit input
x
Q - Bit output
x
Q - Bit output of a FB
x
Function block outputs
Description
Note
(Bit)
E1
Error output
1: if the value is below the minimum on dur-
ation or minimum off duration.
The range limits are checked irrespective
of the edge change on the Boolean EN
input.
270
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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