Eaton easyE4 Manual page 298

6. Function blocks
6.1 Manufacturer function blocks
294
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
(Bit)
EN
D_
SE
RE
(DWord)
SH
SL
SV
Assigning operands
You can assign the following operands to the function block inputs that are numeric
inputs.
Operators
1)
Constant, timer constant
MD, MW, MB - Markers
NB, NW, ND - NET markers
nNB, nND, nND- NET markers
NET station n
IA - Analog input
QA - Analog output
QV - QV - Numeric output of a FB
1) Only on function blocks T, AC
2) Only on projects with ≥ 2 base devices on NET
You can assign the following operands to the function block inputs that are bit inputs:
easyE4 10/19 MN050009 EN www.eaton.com
Description
1: Activates the function block.
Count direction
0: up counting
1: down counting
The starting value at SV is applied
whenever there is a rising edge at
this input
Reset
1: QV=0
Upper Threshold Value
Lower threshold value
Start value (Pre Set)
Value inputs
x
x
2)
x
2)
x
x
x
x
Note
The checkbox for the
Function block release by EN
is necessary
parameter must first be enabled
Integer value range:
-2,147,483,648 to +2,147,483,647