Hitachi NJI-350B manual Out-line of opera-ting procedure Situation Point, On-line On-direct

Chapter 7 Programming

Item

Out-line of opera-ting procedure

Situation

Point

Table 7.4 List of procedures for creating a program

Create new program				Modify				Test operation, adjustment
	Off-line			Off-line			On-line		On-direct
	Start			Start			Start		Start
	Select off-line			Select off-line			Select on-line		Select on-line
	Initialize PLC		Regenerate from FD, etc.			Regenerate		from FD, etc.	Transfer program
									(CPU → PLC)
		When utilizing a program created			Initialize the CPU when
	CPU type: Specify H-302	in another H-series			running it for the first
Memory type: Specify RAM-04H									Select on-direct
		CPU type: Specify H302			time(right after purchase, etc.)
		Memory type: Specify RAM-04H

		Transfer program		*1	Conduct test operation
		(PLC → CPU)
Create I/O assignment	Modify I/O assignment				Modify program (modify
Create program	Modify program			NG	during RUN, etc.)
		CPU error check
	NG	OK			NG
NG					Operation check
	Program check	Conduct test operation
Program check					OK
	OK			NG
OK					Enter in FD, etc.
	Change the name and	Operation check
Save in FD, etc.	save in FD, etc.	OK	To modification		End
End	End		End

When creating a new	When modifying a program	When transferring a created	When modifying a program
program		program to the CPU for the	during test operation
		first time
A program can be created	When using a program that	When performing CPU error	To enter the on-direct mode,
without executing MICRO-	was used in another H-series,	check, make sure the I/O	match the contents in the
EH.	specify H-302 as the CPU	assignment matches the	CPU’s memory and personal
	type.	loaded module. (The loading	computer’s memory. The
		read function can be used to	modified contents will be
		match them forcibly.)	reflected in both the
			computer memory and CPU
			memory.

*1: Set the flow size to 0 for memory assignment.

If a program transfer is performed by specifying the flow size, the message “Cannot execute: Operation error” is displayed, and a peripheral unit remain as WRITE occupied. In this case, either cancel the occupy state from LADDER EDITOR of the peripheral unit or by re-entering the CPU power.

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