Table of Contents
Advertisement
4. A2CcPU
/MELSE
4.5 Devices
Devices indicate contacts, coils, timers, etc. used
in the PC
program operation.
4.5.1 Device
list
Table 4.10 shows the devices and their ranges to be used with the
PC.
Devices indicated with an asterisk
( 8 )
can be set as appropriate by
setting the ranges with parameters using a peripheral device.
For details of parameter setting, see Section 4.3.
Dwice
E x p k n m
Applk.tion Range (Numbor
o f
points)
Provides P C command and data from external device,
X
e a pushbutton, select switch, limit switch, digital
InDut
(Number of
X
+
Y =
512)
X, YO
to IFF
output
I
switch.
- 1
Provides program control result
to
external device,
e.g.
solenoid, magnetic switch, signal light, digital display.
I
~
~~~
Special relay
M9000
to 9255
(2561
- - M
*
M O
to
999
(1OOO)
Internal relay
x
=
2048
Number of
Ms+Ls+Ss
LlooO to 2047 (10481
Latch relay
L
Step re,ay
Can be used
by setting the
parameter
(01
Predefined auxiliary relay for special purpose and for
use in the
PC.
Auxiliary relay
in the
PC
which cannot be output
directly.
Auxiliary relay
in the P C which cannot be output
directly. Backed up during power failure.
Used in the same manner as an internal relay (MI,
e.g.
as a relay indicating the stage number of a step-by-
step process operation program.
B O to 3FF (1024)
Annunciator
F O to 255
(2561
Internal relay for data link which cannot
be output.
May be used as an internal relay
if not set for link
parameter.
by
a fault detection program, stores
a
corresponding
Used to detect
a
fault. When switched on during RUN
number in special register D.
100 ms timer
Up timers available
in 100 ms, 10
rns
and 100 ms
T200 to 255
( 5 6 1
10 ms timer
T O to 199 (200)
100 ms retentive
Can
be
used by setting the parameter.
.
retentive types.
timer
(01
C
Up counters available in normal and interrupt types.
CO
to 255 (2561
Counter
D
Data register
Memory for storing
PC
data.
D O
to 1023 (1024)
Special register
Predefined data memory for special purpose.
Dgooo
to 9255 (256)
I I
W
I
Link
register
I
WO
to
3FF (10241
1
Data
register
for
use
with data
link.
I
I I
R
I
File register
1
Can be used
by setting the parameter.(O)
I
for data link. In the
range
which is not
set
by
link
parameters, file registers can be used as data registers.
I
Table 4.10 D e v h List (Continue)
4-54
1 8 IW 082384
Advertisement
Table of Contents
Troubleshooting
