Omron CJ1W-CLK21-V1 Polling Node Address, Startup Node Address IR, Data Link Status IR 91 to IR

Status Area and Troubleshooting Section 9-2

Polling Node Address, Startup Node Address: IR 191

Polling node address Startup node address

Each node address is displayed in 2-digit BCD.

Network Participation Status: IR 192 and IR 193

IR 192

IR 193

The numbers in the squares indicate node addresses.

The corresponding node participation status is as follows:

0:Not part of the network

1:Part of the network

Local Data Link Participation Status: IR 90

1: Local node data link participating

0:Local node data link not participating or data link inactive

Note

Data Link Status: IR 91 to IR 93

Data link status is valid only when the local node is participating in the data link. Confirm that the Local Data Link Active Bit is ON before referencing the data link status.

When the first data link status word is not set or is set to the default (0000) for either the manually set data link tables or automatically set data link tables, the data link status is stored in the following words for nodes 1 to 6 only.

IR 91	Node	2	Node	1
IR 92	Node	4	Node	3
IR 93	Node	6	Node	5

						PLC status
						0: Inactive (user program not running)
						1: Active (user program running)
					PLC's CPU Unit error
					0: Normal
					1: Error
				Communications error (data link reception)
				0: Normal
				1: Error
			Data link participation
			0: Not in data link or data link inactive
			1: In data link
		Offset error					Error: Offset exceeds
		0: Normal					number of send words.
		1: Error
	Insufficient (short) receive area Insufficient: Receive
	0: Sufficient						area is smaller than
	1: Insufficient						send area. Excess data
							is truncated; other data
							is received.
Remaining receive area							Remaining: Receive
0: Not remaining							area is larger than send
1: Remaining							area. Data is received
							and remaining words
							are cleared.

Note Refer to 5-4 Checking Data Link Status for details on status flags.

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