IAI America TT-C3 - Manual (Page 78)

68
INTELLIGENT ACTUATOR
Chapter 3 X SEL Lanhuage Data
1.
V
alues
and
Symbols
Used
in
SEL
Language
1-8 Symbols
In the Tabletop Robot, values such as variable numbers and flag numbers can be handled as
symbols. For the method to edit symbols, refer to “Editing Symbols” in the operation manual
for X-SEL teaching pendant or “Symbol Edit Window” in the operation manual for X-SEL PC
software.
(1) Supported symbols
The following items can be expressed using symbols:
Variable number, flag number, tag number, subroutine number, program number, position
number, input port number, output port number, axis number, constant
(2) Description rules of symbols
[1] A maximum of nine single-byte alphanumeric characters or underscore starting with an
alphabet
(Note: The length of a character-string literal must not exceed eight single-byte
characters.)
* If the PC software version is 1.1.0.5 or later or the teaching pendant version is 1.04 or
later, an underscore can be used as the first character in a symbol.
* If the PC software version is 1.1.0.5 or later, single-byte ASCII code characters from
21h to 7Eh (limited to those that can be input via keyboard) can be used as the second
and subsequent characters.
* Exercise caution that the same ASCII code may be expressed differently between the
PC software and the teaching pendant because of the different fonts used by the two.
(The same applies to character-string literals.)
5Ch --- PC software: Backslash \ (overseas specifications, etc.)
Teaching pendant: Yen mark ¥
7Eh --- PC software: a
Teaching pendant: Right arrow o
[2] Symbols of the same name must not be defined within each function. (The same local
symbol can be used in different programs.)
[3] Symbols of the same name must not be defined within the flag number, input-port
number or output-port number group. (The same local symbol can be used in different
programs.)
[4] Symbols of the same name must not be defined within the integer-variable number or
real-variable number group. (The same local symbol can be used in different programs.)
[5] Symbols of the same name must not be defined within the integer constant or real
constant group.
(3) Number of symbols that can be defined: Maximum 1000
(4) Number of times symbols can be used in all SEL programs: Maximum 5000 times including
character-string literals
* If symbol is used in all of the input condition, operand 1, operand 2 and output fields, it is
deemed that symbol is used four times in one step.
1-9 Character-String Literals
Character-string literals are used in certain string-operation commands and consist of the
portion enclosed by single quotation marks (‘ ‘) (maximum eight single-byte characters).
With the PC software, single-byte ASCII code characters from 20h to 7Eh (limited to those that
can be input via keyboard) can be used inside the single quotation marks. With the teaching
pendant, single-byte alphanumeric characters and single-byte underscores can be used.