Omron CJ1W-CLK21-V1 Troubleshooting with LNK and M/A Indicators, Data Link Cannot be, Started

Troubleshooting Using Indicators				Section 9-1
Troubleshooting with LNK and M/A Indicators
Data Link Cannot be	The following table describes the LNK and M/A indicators at the startup node
Started	and their use in troubleshooting when a data link cannot be started.
	Starting a data link depends on the Controller Link Unit operating normally
	and participating in the Network. Refer to Troubleshooting with RUN, ERC,
	ERH and INS Indicators earlier in this section and check Unit operation before
	using the following table.
	Indicators		Probable cause	Probable remedy
	LNK	M/A
	Lit	---	Data link operating normally.	---
	Flashing	---	There is an error in the data	When the ERH indicator is
			link tables.	flashing, remake and set the
				data link tables.
			When manual setting is used,	Refer to 5-2-2 Manual Setting
			either data link tables have not	and set data link tables for the
			been created for the startup	startup node.
			node or there is an error in the
			data link tables.
			When automatic setting is	Refer to 5-2-4 Automatic Set-
			used, either the data link	ting and set the automatic
			parameters for the startup	parameters for starting the
			node have not been set or	data links.
			there is an error in the data link
			tables.
			Automatic setting is used with	Use a Controller Link Unit that
			1:N allocations, but the device	supports automatic data link
			does not support this function.	creation with 1:N allocations.
				Refer to Automatic Setting on
				page 129 for details.
			When a number exceeding	The number of data link send
			12,000 was set for the data	and receive words cannot
			link send and receive words or	exceed 12,000 and the same
			the same memory area was	memory area cannot be set for
			set for Area 1 and Area 2	Area 1 and Area 2 when using
			using a CS/CJ-series Control-	a CS/CJ-series pre-Ver. 1.2
			ler Link Unit with unit version	Controller Link Unit. Either use
			1.2 or later that was then	a CS/CJ-series Controller Link
			replaced with a CS/CJ-series	Unit with unit version 1.2 or
			pre-Ver. 1.2 Controller Link	later or reset the data link
			Unit.	tables.
	Not lit	Lit	Manually set data links are	Stop the manually set data
			already operating on the same	links that are operating and
			Network.	restart the data links.
	Not lit	Not lit	Automatically set data links	Stop the automatically set data
			are already operating on the	links that are operating and
			same Network.	restart the data links.
			There is an error in the startup	Refer to the PLC’s operation
			node PLC.	manual and correct the error. If
				the error reoccurs, replace the
				PLC.

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