User-Created Programs; User Program; User Program Reception Processing - Hitachi S10mini Hardware Manual

4.2 User-created Programs

This section describes the user-created programs that constitute the J.NET system.
The user need not create the programs explained below if J.STATION is connected and only I/O
communication is executed.

4.2.1 User program

The transmission and reception handlers are initiated by the user program. The user program is
divided into the following three types:
Ladder program: The ladder program is also called the sequence program. It consists of an A-
contact (
C-mode program: The C-mode program is coded in computer programming languages (e.g., C
BASIC program: The BASIC program is coded in FA-BASIC; it is executed in the form of "task,
The ladder program calls the arithmetic function to start the transmission and reception handlers.
The C-mode program and BASIC program call a subroutine to start the handlers.

4.2.2 User program reception processing

When data reception is completed, this fact is reflected in the associated NET status. If the user
program is the ladder program, it starts the reception handler (arithmetic function) using the NET
status as the condition. A reception data fetch delay is short enough to be born in the sequence
cycle.
NET status symbol
), B-contact (
and assembly language); it is executed in the form of "task, P-coil." This
program requires the Compact Process Monitor System (CPMS) and extended
memory.
P-coil." This program requires the FA-BASIC compiler and extended
memory.
), and output coil (
Data reception arithmetic function
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4-5
4 USER GUIDE
), etc.