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13.2 Word Lamp
A Word Lamp changes state according to the value in the designated word address. If the value equals 0, the first
shape is displayed. If the value equals 1, the second shape is displayed, and so on. The corresponding label for the
state is also displayed if “Use Label” check box is enabled.
Procedure to place a Word Lamp
Note:
Refer to Section 2: Software Reference Guide, Part Placement for details about completing each tab item.
1. Click Word Lamp icon or select
Word Lamp
from the
Parts
menu.
2. Fill in General Tab Items:
Description
: A reference name (not displayed) that
you assign to the Word Lamp.
Read Address
: PLC Word that controls the Word
Lamp state, shape and label.
Device type
is the word prefix.
Device address
is the word number.
No. of words
is fixed at 1 for this part.
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.
Data format
: Defines data from the controller as binary (
BIN
) or binary coded decimal (
BCD
)
Data format types
BIN
(binary format) Decimal numbers are encoded by bit weight
15
0
215 214 213 212 211 210 29 28 27 26 25 24 23 22 21 20
BCD
(binary coded decimal format) Decimal numbers are encoded by bit weight per 4-bit nibble
15
12 11
8 7
4 3
0
10
3
10
2
10
1
10
0
For example: The Read address raw data is
0000 0100 0010 0101
.
The
BIN
format treats the data as
1061
The
BCD
format treats the data as
425
No. of states
: The value of the PLC register data minus 1. (Range: 1 to 32)
For example: A 3-position switch would have the No. of States set to 3.
Example
Bit number
Weight
Register
value = 0
Register
value = 1
Register
value = 2
Summary of Contents for MMI-1500
Page 2: ...ii...
