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About this Manual:
This manual describes the installation and operation of CS1W-DRM21 DeviceNet Unit for SYSMAC
CJ-series PLCs and the CJ1W-DRM21 DeviceNet Unit for SYSMAC CJ-series PLCs, and includes the
sections described below.
Please read this manual and all manuals for related products carefully and be sure you understand the
information provided before attempting to install and operate the DeviceNet Unit. Be sure to read the
precautions provided in the following section.
Section 1 provides an overview of the DeviceNet network, including features, specifications, and sys-
tem.
Section 2 describes the nomenclature and installation of the DeviceNet Unit.
Section 3 describes the words allocated to the DeviceNet Unit in the CIO Area and DM Area. These
words both enable controlling the DeviceNet Unit and accessing Unit and network status.
Section 4 describes the remote I/O communications performed as a master by the DeviceNet Unit.
Section 5 describes the remote I/O communications performed as a slave by the DeviceNet Unit.
Section 6 describes message communications using FINS commands sent from the ladder program
in the CPU Unit of the PC.
Section 7 describes connecting to CX-Programmer via the DeviceNet and the Memory Card backup
function.
Section 8 describes the time required for remote I/O communications and message communications.
Section 9 describes error processing, periodic maintenance, and troubleshooting procedures needed
to keep the DeviceNet network operating properly. We recommend reading through the error process-
ing procedures before operation so that operating errors can be identified and corrected more quickly.
The Appendices provide information on allocation differences with C200H-series DeviceNet Units,
DeviceNet connections, remote programming and monitoring, Memory Card backups, FINS com-
mands and responses, sending DeviceNet explicit message to Non-OMRON nodes, and multi-vendor
applications.
The following manuals provide information on the DeviceNet and OMRON DeviceNet products.
Manual Products Contents Cat. No.
CS/CJ-series DeviceNet
Unit Operation Manual
(This manual)
CS1W-DRM21and CJ1W-DRM21
DeviceNet Units
Information on CS/CJ-
series DeviceNet Units.
W380
DeviceNet
Operation Manual
CVM1-DRM21-V1 DeviceNet Master Unit
C200HW-DRM21-V1 DeviceNet Master Unit
CQM1-DRT21 I/O Link Unit
DRT1-series DeviceNet Slaves
GT1-series DeviceNet Slaves
Information on C200H-
series, CVM1, and CV-
series DeviceNet Units, as
well as general DeviceNet
communications specifica-
tions and wiring methods.
W267
DeviceNet Configurator
Ver. 2.
Operation Manual
WS02-CFDC1-E DeviceNet Configurator
3G8F5-DRM21 ISA Board
3G8E2-DRM21 PCMCIA Board
Information on using the
Configurator.
W382
DeviceNet Slaves Opera-
tion Manual
C200HW-DRT21
CQM1-DRT21
DRT1 Series
Information on DeviceNet
Slaves.
W347
DeviceNet MULTIPLE I/O
TERMINAL Operation
Manual
DRT1-COM
GT1 Series
Information on MULTIPLE
I/O TERMINALs, one type
of DeviceNet slave.
W348