PLZ-4W Applied Operation 6-15
6.6.1 Overview of the Normal Sequence
To create a sequence, you must understand the concept of “program” and “step.”
Fig. 6-11 Conceptual diagram of program and step
• Program
In a single program one of the four operation modes (CC, CR, CV, and CP) is
selected and configured. You can also repeat the same program a specified number
of times or connect another program after the program (chain). However, in a chain,
the mode and range of the program to be chained must be the same.
The number of programs that can be saved is 1 for the fast sequence mode (No. 11)
and 10 for the normal sequence mode (No. 1 to 10).
Below are the settings of a program.
• No. Program number (normal: 1 to 10, fast: 11)
• Memo Memo (up to 11 characters can be specified)
• Mode Operation mode of the program (CC, CR, CV, or CP)
• Range Range of the program (Current range-Voltage range)
• Loop Number of program loops (1 to 9999 where 9999 is infinite loop)
• Last Load Load condition (off/on) when chain is off
• Last Set Current value when chain is off (0 to 100 % of the range setting)
• Chain Number of the program to be executed next (OFF, 1 to 10). Can be
executed only when the operation mode and range match.
A program is a collection of steps (execution unit). A program is created by setting
steps in ascending order from step number 001. When a specified program is exe-
cuted (RUN), steps are executed one by one in ascending order from step number
001. The completion of the last step signifies the end of one program execution.
Step 001
Step 002
Step 003
END
Program
Program
Program
Maximum number of
programs is 10
Step 001
Step 002
Step 003
END
Step 001
Step 002
Step 003
END
Maximum number of
steps is 256 (total)
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