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2 Simple Application Controllers
AL-PCS/WIN-E Settings for Dedicated Protocol 6
6 - 6
6.2 Function Blocks
FB Name FB Symbol Description of Function Block Word Device
Bit
Device
Boolean
[BL]
The Boolean Function Block uses Boolean
algebra to control the ON/OFF state of an
output. An operational expression consists
of either the AND, OR, XOR or NOT form.
-
Set/Reset
[SR]
The Set/Reset Function Block either holds
an output ON (set) or releases the output
OFF (reset.) Priority can be given to either
input pin if both inputs have been energised
simultaneously. The default priority setting
is dedicated to the reset input pin.
-
Pulse
[PL]
The Pulse Function Block sends a single
pulse to the output pin if the input pin
receives either an “ON to OFF”, “OFF to
ON” or “ON to OFF And OFF to ON” input
operation.
-
Alternate
[AL]
The Alternate Function Block is used to
reverse the ON and OFF state of the output
as and when the input pin receives a signal.
The output will be set ON when the input
pin goes high and remain ON until the input
receives the second rising edge.
-
Delay
[DL]
The Delay Function Block provides an ON
delay timer and an OFF delay timer. Time
intervals for either situation can be set. The
time unit can be set to 10ms, 100ms or 1s
increments.
Set ON Delay
Current ON Delay
Set OFF Delay
Current OFF Delay
One Shot
[OS]
The One Shot Function Block awaits a
signal supplied to the input pin thereafter
setting the output according to the specified
time. The timing parameters control the
state of the output (depending on the
priority setting). The time unit can be set to
10ms, 100ms or 1s increments.
Set One Shot
Current One Shot
Flicker
[FL]
The Flicker Function Block changes the ON
and OFF state of the output according to a
preset flicker time. The time unit can be set
to 10ms, 100ms or 1s increments.
Cycle or Time
Current Cycle or Time
ON Flicker
Current ON Flicker
OFF Flicker
Current OFF Flicker
Time
Switch
[TS]
The Time Switch Function Block uses a
predefined time schedule to control the ON
and OFF status of the output.
*1
0001
LB
O2
3
4
P
000
RS
OS
R
P
000
LP
OI P
000
LA
OI
C
000
LD
OI
C
P
000
SO
OI
C
P
000
LF
OI P
000
ST
OP