Chapter 5 Relay Ladder Logic Programming
66
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1B
Basic Elements
General
output
SET
output
RESET
output
PULSE
output
N.O.
contact
N.C.
contact
Number
Symbol
[
¿
À
P
(N.O./N.C.)
Digital
Input
I
i
12(I01-I0C/i01-i0C)
Keypad
Input
Z
z
4(Z01-Z04/z01-z04)
Digital
Output
Q Q Q Q Q q
8(Q01-Q08/q01-q08)
Auxiliary
Coil
M M M M M m
63(M01-M3F/m01-m3F)
Auxiliary
Coil
N N N N N n
63
(N01-N3F/n01-n3F)
Counter C C c
31(C01-C1F/c01-c1F)
Timer T T
T
t
31(T01-T1F/t01-t1F)
Digital Inputs ( I )
The SG2 digital input points are designated as I contacts. The number of digital input points is 6, 8 or 12
depending on each SG2 model.
Keypad Inputs ( Z )
The SG2 keypad input points are designated as Z contacts. The number of keypad input points is 4 which only
exist on SG2 H type model and V type model.
Digital Outputs ( Q )
The SG2 digital output points are designated as Q coils/contacts. The number of digital output points is 4 or 8
depending on each SG2 model. In this example, output point Q01 will be turned on when input point I01 is activated.
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