
3.CREATING AND EDITING SEQUENCE PROGRAMS B-63484EN/05
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3.5 EDITING SYMBOLS AND COMMENTS
This section describes how to edit symbols and comments.
NOTE
Symbols and comments can be displayed and
edited only when the current programmer mode
(offline/online) is offline. To change the
programmer mode to offline, select [Ladder] -
[Online/Offline].
3.5.1 Symbol and Comment Data
Names and comments can be assigned to the input signals and internal
relays used in sequence programs.
These names and comments are generically referred to as symbol and
comment data.
(1) PMC model which does not support the multiple comments
Table 3.5.1 (a)
Definition Display
Symbol
Character string assigned to a
contact or coil (on a one-to-one
basis) and used in place of a
PMC address
Relay comment
Character string assigned to a
contact or coil to describe the
contents at a PMC address
Coil comment
Character string assigned to a coil
to describe it
Net comment
Assigned to an arbitrary position
between nets to describe the
program
Table 3.5.1 (b)
Symbol Relay comment Coil comment
Usable characters
ASCII characters
(except lowercase
letters)
ASCII characters
Kana and Kanji
Half-size kana
ASCII characters
Kana and kanji
Half-size kana
Maximum number of
characters
16 bytes 16 bytes 30 bytes
Maximum number of units
that can be registered
20,000 20,000 20,000
Duplicate definition Not allowed Allowed Allowed
INPUT
X0.0 Y0.0
RELAY
COMMENT
RELAY
COMMENT
Y0.0
COIL
COMMENT
(* HERE IS NET *)
* COMMENT *