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Programming wiring
MN05013005E
222
If the function block is called for the first time, the output value
is initialized with the input value when the device is started or
after a reset. This speeds up the startup behavior of the
function block.
The function block operates according to the following
equation:
Y(
t
) = [T
a
/T
g
]
×
[K
p
×
x(
t
) – Y(
t
–1)]
Y(
t
) = Calculated output value for scan time
t
T
a
= Scan time
T
g
= Recovery time
K
p
=
Proportional
gain
x(
t
) = Actual value with scan time
t
Y(
t
–1) = Output value with scan time
t
– 1
Scan time:
Scan time T
a
depends on the set recovery time value.
GET, fetch a value from the network
The function block allows you to selectively read (get) a 32 bit
value from the network. The GET function block fetches data
which another station has made available on the EZ-NET
network with a PUT function block.
Figure 114: EZD circuit diagram with GET function block
J
The function block updates the output value every time
recovery time T
g
expires.
Recovery time T
g
Scan time T
a
0.1 s to 1 s
10 ms
1 s to 6553 s
T
g
×
0.01
GT01Q1---------------------------Ä DB16T
