
B-63983EN/02 1.OVERVIEW OF PMC
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(2) Extension of maximum character length of symbol and comment
Maximum character length of a symbol and comment is extended
as follows. So you can describe in details.
Kind Extended type Former
symbol 40 characters in
maximum
16 characters in maximum
comment 4 set 255 characters in
maximum
1 set 30 characters in
maximum
(3) Multi language support
One symbol entry has four comments set in maximum.
Displaying comment set can automatically selected by display
language setting in CNC. By describing each comment set in
different languages, you can display comment in all PMC screens
in multi languages. This is very useful in maintenance.
(4) Multiple definition of symbol and comment to one signal
You can define multiple symbols and comments to the same signal.
NOTE
When multiple symbol and comment are defined
to the same signal, you can search the names by
each symbol. On the other hand the symbol on
PMC screen is displayed one of these symbol
names. So if you search symbols, displayed
symbol name on searched position may be
different from searched word.
(5) Data type definition
You can define symbol and comment with data type definition.
Data type Meaning
BOOL Boolean
BYTE 8 bits integer
WORD 16 bits integer
DWORD 32 bits integer
LABEL Label (Address L)
PROG Sub program (Address P)
NOTE
1 In ladder editing screen, for example, BYTE type
symbol can be set to the WORD type parameter
of a function. But it is recommended that data
type of the symbol should be consistent with the
data type of the parameter that it is assigned to.
2 When two or more symbols are defined with a
signal and these symbols have different data
types the symbol name of largest data type is
displayed on PMC screens.