Omron CS1W-CLK21-V1 Handling Precautions, Replacing the Unit, Bit address Unit, Word Unit

Handling Precautions Section 9-6

9-6 Handling Precautions

The Controller Link Unit is a Network device. If the Unit is damaged, it will effect the entire Network, so always ensure repairs are undertaken immedi- ately. We recommend that you have a spare Controller Link Unit on hand so that repairs may be conducted quickly.

9-6-1 Replacing the Unit

Observe the following precautions when replacing the Unit.

•Always turn OFF the power before replacing the Unit.

•Check that the new Unit is not faulty.

•If you suspect that a poor connection is the cause of a malfunction, clean the connectors using a clean, soft cloth and industrial-grade alcohol. Remove any lint or threads left from the cloth, and remount the Unit.

•When returning a faulty Unit for repairs, always attach a detailed fault report to the Unit and return to you nearest OMRON outlet as listed at the back of this manual.

Note 1. The DM Parameter Area for Controller Link Units without “-V1” (CS1W- CLK21 and CJ1W-CLK21) and that for Controller Link Units with “-V1” (CS1W-CLK21-V1 and CJ1W-CLK21-V1) differ in the way shown below.

• Differences in Software Switches (D30000 + 100 ⋅ Unit No.)

Bit address						Unit
		CS1W-CLK21					CS1W-CLK21-V1
		CJ1W-CLK21					CJ1W-CLK21-V1
Bit 11	Reserved for system use (fixed at 0)				Used as the Wired Network 62 Node Enable Bit.
					0: 32 nodes max.
					1: 62 nodes max.
Bit 06	Reserved for system use (fixed at 0)				Used as one of the bits for specifying the data link mode. Mode
					set to automatic setting with 1:N allocation when this bit is
					turned ON.
					0	Manual set-	0	Automatic	0	Automatic
						ting		setting -		setting - 1:N
(Bit 05)	0	Manual set-	0	Automatic	0		0		0
								equality lay-		allocation
		ting		setting
(Bit 04)	0		1		0		1		1
								out

•Difference in Data Link Automatic Setting Parameters (D3000 + 100 ⋅ Unit No. + 12 to 25)

Word		Unit
address
	CS1W-CLK21	CS1W-CLK21-V1
	CJ1W-CLK21	CJ1W-CLK21-V1
+12 to +25	Reserved for system use (fixed at 0)	Used to make parameter settings for automatic data link cre-
		ation with 1:N allocation. (Only possible when automatic setting
		with 1:N allocation is selected by setting software switch bits
		04, 05, and 06 to 1, 0, and 1 respectively.)

Because of the differences shown above, when using a Controller Link Unit without “-V1”, if a value other than 0 is set in the above areas of the CPU Unit’s DM Parameter Area, if the Unit is Unit with “-V1”, there is a possibility of malfunction, particularly in data link operation. Therefore, before replac- ing the Unit (i.e., while the Unit without “-V1” is still mounted), check that 0 is set in all the above areas, and then set as required after the Unit has been replaced.

2.In order to prevent faulty operation be sure to turn off the power to all nodes before replacing the Unit.

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