Omron CJ1W-DRM21 Switch Settings, Dot Indicators, Unit No. Switch, Node Address Switches

Nomenclature and Functions Section 2-1

The following diagram shows the alternating error code/ node address display.

OFF (0.1 s)	OFF (0.3 s)		OFF (0.1 s)	OFF (0.3 s)
Error code	Faulty slave's	Error code		Faulty slave's
	node address			node address
(1 s)		(1 s)
	(1 s)			(1 s)

OFF (0.3 s)		OFF (0.1 s)	OFF (0.3 s)
	Master's node		Master's
			error code (1 s)
	address (1 s)

If there is an error at the DeviceNet Unit.

The master’s error code and master’s node address will be displayed if an error has occurred at the master.

There is no priority in the error codes; all errors that have occurred will be dis- played in order. All error codes begin with letters, so they can be distinguished from node addresses immediately.

Dot Indicators

The following table shows the functions of the dot indicators.

Indicator	Content	Display
Left dot	Scan list enabled/	ON: Master function disabled
	disabled, master	Flashing: Scan list disabled mode
	function disabled
		OFF: Scan list enabled mode
Right dot	Slave function dis-	ON: Slave function disabled
	abled	OFF: Slave operating

2-1-4 Switch Settings

Unit No. Switch

CS1W-DRM21 CJ1W-DRM21

			3		56
	10		2	4
					8
2		FE	1
43		D			7
			0		9
5		C	E			A
6		B			B
789A				DC

Note

Node Address Switches

CS1W-DRM21 CJ1W-DRM21

	09		1	09		1	234			1	234
1								5				5
	8	1		8	0	0				0
2	7		2	7
3			3				87		X101		87		X100
456 X10			456 X10

Use this switch to set the unit number of the DeviceNet Unit as a CPU Bus Unit. The unit number setting determines the CIO and DM area words allo- cated to the Unit as software switches and the status area.

Setting method: One-digit hexadecimal

Setting range: 0 to F

1.The unit number is set to 0 at the factory.

2.Any unit number from 0 to F can be set as long as it hasn’t been set on another CPU Bus Unit connected to the same PC.

3.Use a small flat-blade screwdriver to turn the rotary switches; be careful not to damage the switch.

4.Always turn OFF the PC before changing the unit number setting.

5.If the unit number is the same as one set on another CPU Bus Unit con- nected to the same PC, a duplicate number error will occur in the PC and it won’t be possible to start up the DeviceNet network.

Use these switches to set the node address of the Unit.

Setting method: Two-digit decimal

Setting range: 0 to 63

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