Omron CS1W-DRM21, CJ1W-DRM21 operation manual Normal Slave Table Words n+20 to n+23, On/Off

Allocated CIO Area Words Section 3-2

3-2-12 Normal Slave Table (Words n+20 to n+23)

This table indicates the slaves that are communicating normally with the mas- ter. The bits correspond to node addresses. The bits for slaves for which nor- mal I/O connections have been made are turned ON in this table. These are not flags to show the remote I/O communications status.

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

In the following cases, the status of communications up to the most recent status is saved and then status is cleared when communications are restarted (i.e., when connection is made again).

•Communications power supply error

•Send timeout

•Remote I/O communications stopped

•When a communications error occurs with DIP switch pin 3 (remote I/O communications stop/continue setting for communications errors) on the front panel ON (stop)

This table is updated continuously.

Bit	Name	Status	Controlled	Unit operation
			by
–	Slave Nor-	ON	Unit	Indicates normal connection.
	mal Flags
		OFF	Unit	Indicates that not all connections have been made.

3-2-13 C200H Master Replacement Master Status 1 (Word n+24)

To simplify changes to ladder programs for a C200H DeviceNet Master Unit (C200HW-DRM21-V1), Master Replacement Status 1, which has the same bit configuration as Master Status Area 1, is provided for C200H DeviceNet Mas- ter Units.

Word n+24 [n = CIO 1,500 + (25 x unit number)]

Bit	Name	Status	Controlled	C200HW-	Details and CS1W-DRM21 status
			by	DRM21-V1
				status
00	Unit Memory	ON/OFF	Unit	Switch Set-	This is the same as a Unit memory error (word n+10, bit
	Error Flag			ting Error or	04).
				EEPROM	Note This bit is also used for incorrect switch settings
				Error Flag
					for the C200HW-DRM21-V1. The Unit will not start
					if the switch settings are incorrect.
01	Node	ON/OFF	Unit	Node	This bit turns ON if any one of the following flags turns
	Address			Address	ON:
	Duplicated/			Duplicated/	• Node Address Duplicated Flag (word n+10, bit 06)
	Bus Off Flag			Bus Off Flag
					• Bus Off Flag (word n+10, bit 05)
02	Reserved by	---	---	Reserved by	Reserved by system
	system			system

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