Store Positive Differential (Strpd); Store Negative Differential (Strnd) - Automationdirect.com DL05 User Manual

Store Positive The Store Positive Differential instruction
Differential begins a new rung or an additional branch
(STRPD) in a rung with a normally open contact.
The contact closes for one CPU scan
when the state of the associated image
register
transition. Thereafter, the contact remains
open until the next Off-to-On transition
(the symbol inside the contact represents
the transition). This function is sometimes
called a "one-shot".
Store Negative The Store Negative Differential instruction
Differential begins a new rung or an additional branch
(STRND) in a rung with a normally closed contact.
The contact closes for one CPU scan
when the state of the associated image
register
transition. Thereafter, the contact remains
open until the next On-to-Off transition
(the symbol inside the contact represents
the transition).
Operand Data Type
Inputs
Outputs
Control Relays
Stage
Timer
Counter
In the following example, each time X1 is makes an Off-to-On transition, Y4 will
energize for one scan.
DirectSOFT
In the following example, each time X1 is makes an On-to-Off transition, Y4 will
energize for one scan.
DirectSOFT
point makes an
point makes an
DL05 Range
A aaa
X 0–377
Y 0–377
C 0–777
S 0–377
T 0–177
CT 0–177
X1
X1
Standard RLL Instructions
Boolean Instructions
Off-to-On
On-to-Off
Handheld Programmer Keystrokes
$ P
SHFT
Y4
STR
OUT
GX E
OUT
Handheld Programmer Keystrokes
$
SHFT
Y4
STR
OUT
GX
OUT
5–15
Aaaa
Aaaa
D B
ENT
CV 3 1
ENT
4
N D B
ENT
TMR 3 1
E
ENT
4