TECO SG2 Series - Specialty Memory Types

Chapter 4 Relay Ladder Logic Programming 46
Specialty Memory Types
General output SET output RESET output PULSE output N.O. Contact N.C. Contact Number
Symbol
[
¿
À
P
(N.O. / N.C.)
Lo Hi Used in function block
Expansion input coil
X x 12 (X1-XC /x1-xC)
Expansion output coil
Y Y Y Y Y y 12 (Y1-YC / y1-yC)
Differential (one shot)
D (Positive) d (Negative)
RT C
R R r 15 (R1-RF / r1-rF)
Analog comparator
G G g 15 (G1-GF / g1-gF)
HMI
H 15 (H1-HF)
PWM
P 1 (P1)
DA T A LINK
L 8 (L1-L8)
Positive Input Differential Instruction (One-Shot)
A positive input differential instruction, or One-Shot, holds its status ON for one CPU scan when the
preceding series contact transitions from OFF to ON. This transition from OFF to ON is called a
Positive Input Differential.
Negative Input Differential Instruction (One-Shot)
A negative input differential instruction, or One-Shot, holds its status ON for one CPU scan when
the preceding series contact transitions from ON to OFF. This transition from ON to OFF is
called a Negative Input Differential.