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Overriding Sensor
Values
Overrides Using
RO8S switches
Output LED's
Overrides Using the
Manager's Override Box
Interrupting the
Override
RS.8D.M1.22
Each relay output shows a mode, either Auto, Manual On, or Manual Off. All the
relay outputs in Auto mode also show what the state of the relay is, either –On or –
Off. You can change the mode of any single relay by toggling the mode field (use the
+/- key or your right mouse button), then using the arrow keys to select either Auto,
Manual On, or Manual Off. Finally, use press ENTER (or use your left mouse
button) to save your change.
The Reset button at the bottom center of the screen can be used to restore all the
relay outputs to Auto.
A sensor can be given an "override value" by entering an offset in its service screen.
The RO8S board is a relay output board with override switches. The board provides
8 relay outputs for control of a variety of loads. An override switch and two LED's
are mounted on the board for each relay output. Installation of the RO8S board is
covered in section III-3 of this manual. As with RO8 boards, each output has nor-
mally open, normally closed, and common terminals
Each output has a pair of LED's" one red and one green. The red LED lights
whenever its relay output is overridden. The green LED lights whenever the relay
coil is energized. The possible combinations and their meanings are shown in the
following table:
L
E
D
S
t
t a
s u
R
E
D
G
R
E
O
f f
O
O
f f
O
O
n
O
O
n
O
Configuration Manager's Override Box is covered in Chapter 4-8, Configuring Store
Information.
To activate override of a point, operate the switch for that point. The green light will
blink until the SC 255 has recognized the override (this may take up to fifteen sec-
onds); then the override will take effect.
A timed override point can be configured with interrupt enabled or disabled. When
interrupt is enabled, operating the switch a second time will terminate the override.
The green light will blink for up to fifteen seconds until the SC 255 recognizes the
switch; then the light will go off and the override will end.
AK2-SC 255 Reference Manual
O
v
e
r r
d i
e
C
o
n
d
t i
o i
n
E
N
f f
A
u
o t
m
t a
c i
n
A
u
o t
m
t a
c i
f f
O
v
e
r r
d i
e
n
O
v
e
r r
d i
e
R
e
a l
y
C
o
l i
C
o
n
d
t i
o i
n
d
e
e -
n
r e
i g
e z
d
e
n
r e
i g
e z
d
d
e
e -
n
r e
i g
e z
d
e
n
r e
i g
e z
d
199
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