Omron CJ1W-DRM21, CS1W-DRM21 operation manual Errors that May Occur in Remote I/O Communications

Errors that May Occur in Remote I/O CommunicationsSection 4-7

4-7	Errors that May Occur in Remote I/O Communications
			The following errors may occur during remote I/O communications.
Condition		Error		Details	Results	Indicators	7-
							segment
							display
Error		Structure	Duplicate I/	The same I/O word is allocated to	Reconnect with	MS: Not	d0
occurs in		Error Flag	O area	two or more slaves. (This occurs	the error slave	related
fixed allo-		(word n+12,		whenever a slave that is allocated	and continue	NS:
cations		bit 04) turns		multiple words has one of the	remote I/O com-
						Flashes
with the		ON		words allocated to the node	munications.
						red
scan list				address of another Slave.)
disabled
			I/O area	A slave is allocated an area out-			d1
			range	side the fixed allocations area.
			exceeded	(This occurs whenever slaves are
				allocated multiple words and a
				slave is allocated a word beyond
				node address 63 in the fixed allo-
				cations area.)
			Unsup-	The I/O size of a slave exceeds			d2
			ported	200 bytes (100 words). (This
			Slave	occurs if either the IN or the OUT
				size exceeds 200 bytes.)
Error		Verification	No slaves	A Slave registered in the scan list			d5
occurs in		Error Flag	present	is not present.
either fixed		(word n+12,
			I/O size	The I/O size registered in the scan			d6
or user-set		bit 00) turns
			mis-	list does not match the I/O size of
allocations		ON
			matched	the slave.
with the
				Note I/O size is compared in 8-
scan list
				point (1-byte) units. If I/O
enabled
				size is registered at 8
				points for example, then an
				error I/O size mismatch will
				not occur with a Slave with
				just one input point con-
				nected.
			Incorrect	The vendor registered in the scan			d6
			vendor	list does not match the slave ven-
				dor.
			Incorrect	The device type registered in the			d6
			device type	scan list does not match the slave
				device type.
			Incorrect	The product code registered in the			d6
			product	scan list does not match the slave
			code	product code.
			Incorrect	The connection bus registered in			d6
			connection	the scan list is set incorrectly.
			bus
			Unsup-	The slave does not support the			d6
			ported con-	connection registered in the scan
			nection	list.

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