
B–61863E/15
5. EDITING OF SEQUENCE
PROGRAM (EDIT)
PMC PROGRAMMER (CRT/MDI)
549
A signal name (within 6 alphanumeric characters) can be attached to I/O
signals and internal relays employed in sequence programs.
Also, a comment (within 30 alphanumeric characters) can be attached to
the relay coils in addition to the symbol name.
Symbol data and comment are displayed together with a ladder diagram
on the CRT/MDI screen as follows.
MA SPDALM X2.4 R2.2 Y4.3 ATCALM R100.1 MRDY
APCALM R5.4 MALM
R120.1 TIND D20.7 R52.1
MACHINE
READY
MACHINE
ALARM
Signal name
(within 6
characters)
Comment
within 30
characters
10 lines
APC
Addresses are
issued for those
items for which
symbols are not
defined.
If symbol data and comment are defined in signal addresses of the
program, the signal name and comment are displayed as Shown in the
above figure.
If neither symbol data nor comment is defined at an address, the address
is displayed as it is.
A maximum of 64 KBytes can be used for the ladder, symbol, comment,
and data. After the program is initialized, the capacity of the symbol area
and that of the comment area are usually 32KB (28KB for PMC–NB)
each. When additional data is entered causing the total amount of data in
either area to exceed 32KB (28KB for PMC–NB), the area is
automatically extended in 1KB units.
STOP EDIT I/O
TITLE LADDER SYMBOL MESAGE
INPMOD DELETE SEARCH
RETURN
SYSPRM MONIT
RETURN
COPY
Fig. 5.4(a) Setting and display of symbol data
5.4
SYMBOL DATA
SETTING (SYMBOL)