Omron CS1W-CLK21-V1, CVM1-CLK21, CS1W-RPT01, CJ1W-CLK21-V1, C200HW-CLK21, CQM1H-CLK21 144

Setting Data Links Section 5-2

Total number of words in data link send and receive areas of master node =

Number of common send words in master node +

Number of individual send words in each node ⋅ Number of nodes par- ticipating in data links (including both master nodes and slave nodes)

5.The following values must be satisfied to ensure that the data link area is fully contained within the specified area.

(Area start word − 1) + (Total number of send and receive words of master node *)

≤6143 (when using the IR or CIO Area)

199 (when using LR Area)

32767 (when using DM or EM Area)

*Total number of send and receive words in master node =

Number of common send words in master node +

Number of delivery send words in master node ⋅ Number of nodes participating in data links (including both master nodes and slave nodes)

6.If a node that does not actually exist (e.g., a node that is scheduled to be added in the future) is registered as a node that will participate in the data links, a data link area for that node will be allocated in the master node, and the send/receive area will be refreshed with “0” data.

7.Automatic data link creation with 1:N allocation can only be performed with CS1W-CLK21-V1, CJ1W-CLK21-V1, 3G8F7-CLK21-V1 Controller Link Units. If any other model is used, the LNK LED will flash and it will not be possible to participate in the automatic creation with 1:N allocation.

8.If automatic data link creation with 1:N allocation is to be set up using CX- Net operations in the CX-Programmer, use CX-Programmer Version 3.2 or higher. Setup cannot be performed using CX-Programmer Version 3.2 or lower.

9.The startup node (the node that sets the above DM parameter and starts the data link) can be set at either a master node or a slave node.

10.When data links are automatically created for networks containing C200HX/HG/HE PLCs, CS/CJ-series PLCs, CVM1, CV-series, and CQM1H-series PLCs, the linkable area is restricted to the area of the CVM1, CV-series, C200HX/HG/HE, or CQM1H-series PLC because it is smaller than that of CS/CJ-series PLCs.

Example:	IR/CIO Area	C200HX/HG/HE or
		CQM1H-series PLCs		CS/CJ-series PLCs
		0		0
		to		to	Available for the data links
		235		235
				to	Not available for the data links
		CVM1 or		6655
Example:	DM Area	CV-series PLCs		CS/CJ-series PLCs
		DM000	DM000
		to		to	Available for the data links
		DM24575	DM24575
				to	Not available for the data links
			DM32767

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