Omron CS1W-DRM21, CJ1W-DRM21 operation manual Master COS Send Switches Words n+2 to n+5

Allocated CIO Area Words								Section 3-2
Bit	Name	Status	Con-	Unit operation	Operation conditions				Default
			trolled by						setting
					CPU	Mas-	Scan	Slave
					Unit	ter	list	func-
					oper-	func	sta-	tion
					ating	tion	tus
					mode
15	Unit Setup	OFF→	User	Writes user settings (scan list, communica-	---	---	En-	---	None
	File	ON		tions cycle time settings, etc.) as a file on			abled
	Backup			the Memory Card in the CPU Unit. See 7-2			(See
							note
	Switch			Memory Card Backup Functions for details.
							1.)
				Note Files can only be backed up with
				the scan list enabled.
		OFF	Unit	Returns to OFF after the data is written to
				a file.
				Note The File Read/Write Error Flag
				(word n+11, bit 08) in Unit Status 2
				will turn ON if data failed to be writ-
				ten to file.

Note 1. When the Master function is enabled, the Unit Setup File cannot be backed up unless the scan list is enabled.

3-2-3 Master COS Send Switches (Words n+2 to n+5)

n+2

n+3

n+4

n+5

One Master COS Send Switch is allocated to each slave node address. If the switch for a slave is turned ON, then COS output data will be sent to that slave.

Bit15	Bit14	Bit13	Bit12	Bit11	Bit10	Bit09	Bit08 Bit07		Bit06	Bit05	Bit04	Bit03	Bit02	Bit01	Bit00
15	14	13	12	11	10	09	08	07	06	05	04	03	02	01	00
31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
47	46	45	44	43	42	41	40	39	38	37	36	35	34	33	32
63	62	61	60	59	58	57	56	55	54	53	52	51	50	49	48

More than one of these switches may be turned ON at the same time. The switches will return to OFF starting at the switches for the slaves to which COS data has been sent.

If a send error occurs, the corresponding bit will turn ON in Slave Detailed Status.

3-2-4 Disconnect/Connect Switches (Words n+6 to n+9)

One Disconnect/Connect Switch is allocated to each slave node address. If the switch for a slave is turned ON, then remote I/O communications to that slave will be temporarily stopped (i.e., it is disconnected from the network). A communications error will occur at the end for any slave has been discon- nected if the corresponding switch is turned ON during communications.

These switches are used primarily to replace slaves or to reserve a place for a slave that will be added (when a Unit is registered in the scan list but not yet connected). A communications error and verification error for the slave that has been disconnected will not be generated at the master as long as the cor- responding switch is ON.

Note These switches do not add or remove slaves from the registered scan list.

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