Omron CJ1W-DRM21, CS1W-DRM21 operation manual CVM1/CV

Specifications							Section 1-3
	Item				Specifications
Default settings			•	Scan list: Not supported
			•	Master communications: Supported
			•	Slave communications: Disabled
			• Remote I/O communications: Start
			• Master fixed allocations: Fixed Allocation Area Setting 1
			• Slave fixed allocations: Fixed Allocation Area Setting 1
Data stored in non-volatile memory (EEPROM) in the			Saves the following data settings (same as the backup file on the
DeviceNet Unit			Memory Card).
			•	Master scan list
			•	Slave scan list
			• Message monitoring timer list (monitoring time for explicit mes-
				sage responses)
			•	Communications time settings
			•	Master/Slave enabled
Applicable connections			• The DeviceNet Unit automatically selects the applicable con-
				nection.
			•	The user can also specify poll, bit-strobe, COS (change of
				state) or cyclic for the applicable connection of each slave us-
				ing the Configurator. Up to two types of connections can be set
				for each Slave (although COS and cyclic cannot be specified si-
				multaneously).
Communications cycle time			Uses values calculated using the following equations to derive
			default value.
			Example: 16 Input Slaves (16 points each), 16 Output Slaves
			(16 points each), and a baud rate of 500 Kbps: 9.3 ms
			The user can set a value within a range from 2 to 500 ms. How-
			ever, the calculated value is only enabled when the calculated
			value from the conditions equation is greater than the setting.
			Note Uses the default value calculated using 1 input word and
				1 output word even for missing nodes when the scan list
				is disabled.
Message	Max. No. of nodes for message commu-		FINS message com-		62 nodes	Note FINS message com-
communica-	nications per DeviceNet Unit		munications (Node				munications using
tions			address 0 cannot be				SEND/RECV are
			used in FINS commu-				not supported on
			nicatins.)				PCs to which a
							C200H DeviceNet
			Send explicit mes-		63 nodes
							Master Unit or a
			sages
							CVM1/CV
							DeviceNet Master
							Unit is mounted.
							Explicit message
							are supported how-
							ever.
	Execution commands		FINS commands to		SEND/RECV instructions
			send/receive data
			Any FINS commands		CMND instruction
	Sending and receiving FINS commands		Executes FINS commands from a host computer to a PC (to
	connected through a serial line		which a CS/CJ-series DeviceNet Unit is mounted) on DeviceNet
			through Host Link connections. A PC can also send unsolicited
			FINS commands over DeviceNet to a host computer connected
			through Host Link.
	Inter–network communica-	Same type	Allows transmission across the same type of networks between
	tions	of network	DeviceNet networks when multiple Units are mounted (can cross
			up to three levels).
		Different	Allows transmission across different types of networks between
		type of net-	DeviceNet and other networks (e.g., Controller Link, SYSMAC
		work	LINK and Ethernet) (can cross up to three levels).

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