Omron CS1W-DRM21, CJ1W-DRM21 operation manual Masters, Types of Slave

Overview of DeviceNet Section 1-1

V1) or a CVM1/CV-series DeviceNet Master Unit (CVM1-DRM21-V1). Refer to 6-3 Using FINS Message Communications for details.

Communications Software Switches and Communications Status

Dedicated words in the CPU Unit are allocated for DeviceNet communications software switches and status.

Master

Software switches

Status area

Control scan list registration/clearing, remote I/O communications start/stop, and other parameters

Enables monitoring communications errors, communications status of Masters, registered Slave data, normal Slave data, etc.

1-1-3 Masters

PC	Model	Mountable position	Master/Slave	Maximum number of
			function	mountable units
				With	Without
				Configurator	Configurator
CS Series	CS1W-DRM21	CPU or Expansion CPU	Master and Slave	16
	DeviceNet Unit	Rack (Classified as CPU
		Bus Units)
CJ Series	CJ1W-DRM21	CPU Rack or Expansion
		Rack (Classified as CPU
		Bus Units)
CVM1/CV Series	CVM1-DRM21-V1	CPU or Expansion CPU	Master only	16	1
	DeviceNet Master	Rack (Classified as CPU
	Unit	Bus Units)
CS Series	C200HW-DRM21-V1	CPU Rack or Expansion		16
	DeviceNet Master	I/O Rack (Classified as
C200HX/HG/HE				10 or 16
	Unit	Special I/O Units)
C200HS				10

1-1-4 Types of Slave

The following classifications are used for DeviceNet Slaves.

•General-purpose Slaves:

Slave with I/O functions for I/O that uses an ordinary connector connected to a communications cable.

•Environment-resistant Slaves:

Slave with I/O functions for I/O that uses a round, waterproof connector connected to a communications cable.

•Special Slaves:

Slave with functions not related to I/O (e.g., message communications) for I/O that uses an ordinary connector connected to a communications cable.

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