Omron NT631C manual Errors in the System Installer Mode and Their Remedies, Dies

Responding to Displayed Error MessagesSection 7-2

7-2-3	Errors Occurring on Screen Data Initialization and Transmission
		The table below shows the errors that can occur when the NT631/NT631C
		data is initialized, and during data setting and transmission, and their reme-
		dies.
	Message	Cause	Remedy
[Flash Memory Error]		There is a hardware fault, or the	If the same message is displayed even after
Flash Memory I/O Error.		flash memory (memory for storing	clearing the screen data or transmitting screen
		screen data) has reached the end	data several times, contact your OMRON service
If this happens frequently, Flash
		of its service life.	center.
Memory may be broken.
Press Reset Switch to restart.
[Calendar Data Error]		Hardware fault, or system pro-	Set the calendar clock again from the System
Calendar Data is incorrect.		gram error	Menu. If the problem recurs, delete the program
			in the System Installer mode, then re-install the
Set to the MAINTENANCE MODE
			program. (6-5-2 Clearing/Installing the System
and set Calendar Data.
			Program, page 145)
			If this does not solve the problem, contact your
			OMRON service center.
[Tool Transmit Error]		The connecting cable is defective.	Check the cable connection and perform a con-
∗∗∗∗ Error detected while down-			ductivity test. If there is a fault, replace the cable.
loading by the following case:			(Appendix F Making the Cable for Connecting a
			PLC)
• faulty connecting cable.
		Malfunction due to external noise	Carry out grounding work in accordance with the
• corrupted data by noise.
			conditions by referring to 3-1-4 Grounding,
			page 34.
[Tool Transmit Error]		Malfunction due to external noise	Carry out grounding work in accordance with the
Check Sum Error occurs while			conditions by referring to 3-1-4 Grounding,
			page 34.
downloading by the following
case:
• corrupted data by noise.
[Tool Transmit Error]		The connecting cable is defective.	Check the cable connection and perform a con-
Time-out Error occurs while down-			ductivity test. If there is a fault, replace the cable.
loading by the following case:
• faulty connecting cable.
[Tool Transmit Error]		The receive buffer has overflowed.	Retransmit the data from the Support Tool.
Reception was failed by Buffer
Over Flow Error.

7-2-4	Errors in the System Installer Mode and Their Remedies
		This section describes the errors that may occur in the System Installer mode
		of the NT631/NT631C, and the remedies for these errors.
	Message		Cause	Remedy
System Program not exist or		-	The system program has not	Select Download System Program and download
incorrect.			been installed.	the system program (6-5-2 Clearing/Installing the
		-	The system program has been	System Program, page 145)
			deleted due to a hardware fault,	If this does not solve the problem, contact your
			or because the flash memory	OMRON service center.
			(memory for storing the system
			program) has reached its life.
Unable to erase System Program.		Hardware fault, or flash memory		If the same message is displayed on repeating
		(memory for storing the system		selection of Download System Program and
		program) has reached its life.		attempting to delete the system program several
				times, contact your OMRON service center (6-5-2
				Clearing/Installing the System Program,
				page 145)

232