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13.1 Bit Lamp
A Bit Lamp displays the ON or OFF status of a designated bit address. If the bit status is OFF, the state 0 shape is
displayed. If the bit status is ON, the state 1 shape is displayed, and so on. The corresponding label is also
displayed if
Use Label
or
Use Label Library
are enabled. Bit Lamps cannot be used to change the state of a bit.
Use the Set Bit or Toggle Switch parts to change Bit State.
Procedure to place a Bit Lamp
Note:
Refer to Software Reference Guide, Part Placement for further details about completing each tab item.
Step 1.
Click
tool or select
Parts|Bit Lamp
from the
menu.
Step 2
. Fill in
General
Tab Items:
Description
: A reference name (not displayed) that
you assign to the Bit Lamp.
Read Address
: Bit that controls the Bit Lamp state,
shape and label. See section on Part Placement for
more details about entering a Read address.
Device type
is the bit type prefix.
Device address
is the bit number.
Tag
is used to select the Read address from a list
of predefined Tags.
Aux.
directs the Read address to be retrieved
from the Auxiliary Port.
Attribute
: This area is used to set the display
properties.
Function
. There are two Function types for Bit
Lamps: Normal and Blinking. If a blinking function is
selected, the
Break time
needs to be set.
Function Summary:
Attribute
Description
Display at State 0
Display at State 1
Normal
Bit Lamp is displayed as the State (0 or 1) of its
Shape/Bitmap and /or Label.
State 0 Shape and
Label
State 1 Shape and
Label
ON Blinks State 0
The State 0 Shape/Bitmap and /or Label blinks
when the Read address is ON.
State 0 Shape and
Label
State 0 Shape and
Label blinking
ON Blinks State 1
The Shape/Bitmap and /or Label changes to State 1
and blinks when the Read address is ON.
State 0 Shape and
Label
State 1 Shape and
Label blinking
Break time
is used to set the blink duty cycle. The Integer entered in the Break time field represents half of the 50-50
duty cycle in 1/10ths of a second. Range is 0 to 2147483647.
Read bit
status = ON
Read bit
status = OFF
Summary of Contents for MMI-1500
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