Automationdirect.com DL06 - Page 180

DL06 Micro PLC User Manual, 3rd Edition, Rev. E
5-19
Chapter 5: Standard RLL Instructions
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A
B
C
D
Not (NOT)
The Not instruction inverts the status of the rung at the point
of the instruction.
In the following example, when X1 is off, Y2 will energize. This is because the Not instruction
inverts the status of the rung at the Not instruction.
NOTE: DirectSOFT Release 1.1i and later supports the use of the NOT instruction. The above example
rung is merely intended to show the visual representation of the NOT instruction. The NOT instruction
can only be selected in DirectSOFT from the Instruction Browser. The rung cannot be created or
displayed in DirectSOFT versions earlier than 1.1i.
In the following example, every time X1 makes an Off-to-On transition, C0 will energize for
one scan.
Y2
OUT
X1
Handheld Programmer KeystrokesDirectSOFT32
STR
$
1
B
ENT
SHFT
TMR
N
INST#
O
MLR
T
ENT
OUT
GX
2
C
ENT
A aaa
PD
STR
$
1
B
ENT
SHFT
CV
P
3
D
SHFT
0
A
ENT
C0
PD
X1
Handheld Programmer Keystrokes
DirectSOFT32
Operand Data Type DL06 Range
A
aaa
Inputs X 0–777
Outputs Y 0–777
Control Relays C 0–1777
DS Used
HPP Used
DS Used
HPP Used
DirectSOFT
DirectSOFT
Positive Differential (PD)
The Positive Differential instruction is typically known as
a one shot. When the input logic produces an off to on
transition, the output will energize for one CPU scan.