Set Coil And Reset Coil; Node Operation Instructions - FATEK FBS Series Manual

From the above example, if turn the X0 "ON" then "OFF", Y0 will keep at "ON". When change the PLC state from RUN to
STOP then RUN or turn the power off then on, the Y0 still keep at ON state. But if use the OUT Y0 instruction instead of
the OUT L Y0 , Y0 status will be OFF.

4.2.5 Set Coil and Reset Coil

Set Coil writes 1 into an operand specified. Reset Coil writes 0 into an operand specified. The characteristics depicts at
below.
X0
X1

4.3 Node Operation Instructions

A node is the connection between elements in a ladder diagram consisting of sequential instruction elements (please
refer to Section 1.2). There are four instructions dedicated for node status operation in FBs-PLC. The two instructions,
"OUT TR" and "LD TR", have been discussed in Section 1.6 of this manual. Using the diagram below, the three node
operation instructions NOT, TU and TD, are illustrated.
P
SET
EN Y 0
P
RST
0
EN Y
X0
X1
Y0
Node B
X1
X0
Node A
ORG
SET
ORG
RST
SET
RST
ORG
AND
NOT
OUT
Y0
TU
OUT
Y1
LD
TD
OUT
4 - 5
X 0
P Y 0
X 1
P Y 0
X 0
X 1
TR 0
Y 0
TR 0
Y 1