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5 Function blocks
5.14 FT, signal smoothing filter
Control Relay easy800
11/11 MN04902001Z-EN
www.eaton.com
195
Cycle time to scan time: The scan time should be very large, approx. factor
10 compared to the cycle time, in order to ensure the correct ratio of cycle
time t
cyc
to scan time T
a
. The scan time T
a
is set indirectly via the value for
the recovery time T
g
(see above table).
The following applies: t
cyc
<< T
a
Some applications exist in which this condition cannot be reached. In this
case you should set the cycle time using the ST function block (set cycle
time) so that the scan time is an integer multiple of the cycle time.
t
cyc
n = T
a
with n = 1, 2, 3, …
The function block always operates with a scan time that corresponds to an
integer multiple of the cycle time. This can cause the set recovery time to be
lengthened.
Содержание easy800
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Страница 138: ...4 Wiring with 800 4 7 Working with function blocks 134 Control Relay easy800 11 11 MN04902001Z EN www eaton com...
Страница 300: ...7 SmartWire DT 7 4 Errors on the SWD line 296 Control Relay easy800 11 11 MN04902001Z EN www eaton com...
Страница 336: ...10 Diagnostics possibilities 10 4 Transistor output 332 Control Relay easy800 11 11 MN04902001Z EN www eaton com...