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Publication 1763-RM001C-EN-P - October 2009
168
Timer and Counter Instructions
Each timer address is made of a 3-word element. Word 0 is the control
and status word, word 1 stores the preset value, and word 2 stores the
accumulated value.
EN = Timer Enable Bit
TT = Timer Timing Bit
DN = Timer Done Bit
Addressing Modes and File Types can be used as shown in the following
table:
Timer Base Settings
Time Base
Timing Range
0.001 seconds
0 to 32.767 seconds
0.01 seconds
0 to 327.67 seconds
1.00 seconds
0 to 32,767 seconds
Timer File
Word
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Word 0
EN
TT
DN
Internal Use
Word 1
Preset Value
Word 2
Accumulated Value
ATTENTION
Do not copy timer elements while the timer enable bit
(EN) is set. Unpredictable machine operation may occur.
Timer Instructions Valid Addressing Modes and File Types
For definitions of the terms used in this table see Using the Instruction Descriptions on page 82.
Parameter
Data Files
(1)
Function Files
CS - Comms
IO
S -
I/O
DL
S
- Da
ta
L
o
g
Address
Mode
Address Level
O
I
S
B
T,
C
, R
N
F
ST
L
MG,
PD
RI/RI
X
PLS
RTC
HS
C
PTO, PWM
STI
EII
BH
I
MMI
LCD
Imme
diate
Di
re
c
t
Indir
e
c
t
Bi
t
Wo
rd
Long
W
o
rd
Eleme
n
t
Timer
•
•
•
Time Base
•
•
Preset
•
•
Accumulator
•
•
(1) Valid for Timer Files only.
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