General Description; Features - Mitsubishi MELSEC-A Series Operating Manual

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DESCRIPTION
1.
GENERAL DESCRIPTION
This manual explains specifications, handling, and operations of the A8PUE.
The A8PUE is a peripheral device that is used with the MELSEC-A series of
general-purpose programmable controtters. It can -read from and write to
sequence programs
in a MELSEC-A
series PC
CPU.
The A8PUE is also used for monitoring and Wsting devices. Follow the
procedures in this manual when using the A7PUS to perform program I/O, as
well as inspection and maintenance.
1.1
Features
(1) A2A(S1) and A3ACPU are supported
All A2A(S1) and A3ACPU devices are supported.
(2) Expanded display area
The display area was expanded by using a back-lit LCD of 4
lines x 20
character. Therefore, inputting/editing/monitoring/testing of sequence
programs can be easily executed.
(3) Easy key operations
Key operations are easier thanks to the Long key stroke.
(4)
Accessing another station's PC CPU is enabled
Writing, monitoring, and testing
o f
sequence programs can be executed
from the station to which A8PUE is connected to another station (master
station/local station) on MELSECNET(II)/B.
(5)
Writing when the CPU is in the RUN state is enabled
If
the number of steps in a sequence program changes, the sequence
program can be changed when the CPU is in the RUN state.
(6) Extensive help functions
Help functions for reading/writing/inserting/deleting/monitoring/testing
operations in the menu selection format using dialog are supported.
(7)
Easier control of parameters and sequence programs
Checking, revising, changing, inserting, and monitoring of PC CPU
parameters and sequence programs is now easier.
1) Example of changing a sequence program instruction
LD
x0
Change LD
X0
OUT
Y20
-
MOV DO D l
LD X1 LD X1
I
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2)
Example
of
changing the T/C set value
The TIC set value can be changed in the menu format when the CPU
is in the RUN state.
T/C SET VAL. CEO
The set value before changing is displayed.
Input the set value
to be
changed.
Input the device (timer
or
counter) whose set value
will be changed.
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