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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.
1-1-3 Masters
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.
PC Model Mountable position Master/Slave
function
Maximum number of
mountable units
With
Configurator
Without
Configurator
CS Series CS1W-DRM21
DeviceNet Unit
CPU or Expansion CPU
Rack (Classified as CPU
Bus Units)
Master and Slave 16
CJ Series CJ1W-DRM21 CPU Rack or Expansion
Rack (Classified as CPU
Bus Units)
CVM1/CV Series CVM1-DRM21-V1
DeviceNet Master
Unit
CPU or Expansion CPU
Rack (Classified as CPU
Bus Units)
Master only 16 1
CS Series C200HW-DRM21-V1
DeviceNet Master
Unit
CPU Rack or Expansion
I/O Rack (Classified as
Special I/O Units)
16
C200HX/HG/HE 10 or 16
C200HS 10
Master
Control scan list registration/clearing, remote I/O
communications start/stop, and other parameters
Software
switches
Enables monitoring communications errors, communications
status of Masters, registered Slave data, normal Slave data,
etc.
Status area