4-37How to Operate Variables
4Reads/Writes Robot's Variables
2) Bit signal
(3) Completion status
The values below are established as completion status:
(4) Data description
[Function No]
Select the target function.
Function number setting allows you to select work type (read/ write variable) and variable type (numeric/
position/ joint variables) and specify a variable name (designation of ASCII character).
[Slot number]
Select the target slot.
In general, specify a value between 1 and the value of parameter TASKMAX (factory default: 8). In case
of external variable, "0" can be specified.
[Program name]
Program name is displayed in ASCII character.
● Specifying ASCII character
• Specify ASCII program name in 6 words area (12 characters).
• To specify ASCII characters, specify all 12 characters or string data including terminating code.
However, leading and ending blank characters (space) are ignored.
• When target is an external variable and zero is specified for slot number, the program name becomes
NULL.
[Variable name]
To specify a variable name, specify ASCII characters.
● Specifying ASCII character
• Specify the variable name (including leading character) in the 8 words area (16 characters, robot speci-
fication).
• To specify ASCII characters, specify all 16 characters or string data including terminating code.
However, leading and ending whitespace characters (space) are ignored.
• The character underscore (_) used in array and external variable is also available, and array or external
variable can be specified.
Sequencer Address
Description
Addr (offset) Bit position
550 0 Variable operation completed
Setting
Value
Description
1 Successfully completed
2
Specified data (function number, slot number, variable number, element number, or external variable specification)
out of range
3 Program not selected for the target slot
4 Target variable does not exist
5 (Reserved)
6 Not the formal variable data (at the time of writing variable)
7 Target variable not writable (at the time of writing variable)
8
Target variable value out of range at the time of reading variable: Not in the range between -32768 and 32767 (at the
time of reading numeric variable)
10 NG because of a factor other than 2 to 8
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