Omron CS1W-DRM21-V1 Instruction

CS-series DeviceNet Unit

CS1W-DRM21-V1

Improve Maintenance

• Operation time monitor function

• Contact operations counter (See note.)

• Unit conduction time monitor function

• Total ON time monitor function (See note.)

•

Network power supply voltage monitor function

• Communications error log function

• Last maintenance date

• Comparator function

• Selectable output value after error

Reduce Downtime

•

Unit comments function

• Connected device comments function

• I/O power supply monitor function

• Sensor power supply short-circuit detection function

• External load short-circuit detection function

• Disconnected sensor detection function

Reduce Setup Time

• Network power supply monitor function

• Input filter function

• Power-ON inrush current

protection function

• Communications speed

auto-detect function

• Scaling function

• User compensation function

• Cumulative counter

• Moving average processing function

• Number of A/D conversion points

(conversion cycle) setting

• Peak/bottom hold function

• Top/valley hold function

• Percentage change calculation

function

Maintenance systemControl system

DeviceNet
Configurator

Ethernet

Maintenance information

PLC

Control
information

DRT2-series
Smart Slave
Remote I/O Terminals

DRT2-series
Smart Slave
Analog I/O Terminals

DRT2-series
Smart Slave
Environment-resistive
Terminals

DRT2-series
Smart Slave
Sensor Terminals

E5ZN-DRT
Smart Slave DeviceNet
Communications Unit

Network power supply voltage monitor

Unit/Connected device comments

Unit power-ON time monitor

Common Smart Slave Functions

DRT2-series
Screw-less Clamp
Terminals

DRT2-series
Remote I/O Terminals
Relay Output Terminals

DRT2-series
Remote I/O Terminals
Models with 3-tier
Terminal Blocks

DRT2-series
MIL Connector
Terminals

Smart Slave:
DRT2-series
Board Terminals
with MIL Connectors

CS1W-DRM21-V1

CSM_CS1W-DRM21-V1_DS_E_5_3

A DeviceNet Unit for the CS Series
That Boasts Industry-leading
Performance and Functions

Features

• Allows control of up to 32,000 points (2,000 words) per master, and ensures a high degree of simultaneity between data.

• Can be used as both a master and a slave at the same time.

• Equipped with settings and monitor functions aimed at improving both design and startup efficiency. Achieve maximum performance by using

in combination with a Configurator.

• Files of master and slave settings can be uploaded and downloaded using memory cards, allowing effective debugging and easier setup.

System Configurations

Note: The number of contact operations monitor function and the cumulative ON time monitor function cannot be used simultaneously for the same

contact.

1

CS1W-DRM21-V1

Device

Device

Device

Device

Device

Device

Device Device

Device

DeviceDevice

Terminating

resistance

Terminating

resistance

Tap Tap Tap

Tap

24 V DC power supply

for network

Tap

Device

Tap

Trunk Line Length (100 m: 500,000 bps; 250 m: 250,000 bps; or 500 m: 125,000 bps)

Multidrop

Star Connections

T-Branch

Branching to

Branch Lines

(Branch line length: 6 m max.)

Communications Specifications

Item Specifications

Communications protocol DeviceNet
Connection methods Multi-drop and T-branch connections can be combined (for trunk and branch lines) *1
Baud rate 500 Kbps, 250 Kbps, or 125 Kbps

Communications media

Communications distances for
special 5-wire cables

Communications distances for
special 4-wire flat cables

Communications
power supply

Max. number of nodes 64 nodes (including Masters, Slaves, and Configurator)

*1. Terminators are required at both ends of trunk line.
*2. Indicates the maximum network length when thick cables are used. Reduce the network length to 100 m max. when using thin cables.

Special 5-wire cables (2 signal lines, 2 power lines, 1 shield line)
Special 4-wire flat cables (2 signal lines, 2 power lines)

Baud rate Network length Branch line length Total branch line length
500 kbps 100 m max. 6 m max. 39 m max.
250 kbps 250 m max. *2 6 m max. 78 m max.
125 kbps 500 m max. *2 6 m max. 156 m max.
Baud rate Network length Branch line length Total branch line length
500 kbps 75 m max. 6 m max. 35 m max.
250 kbps 150 m max. 6 m max. 48 m max.
125 kbps 265 m max. 6 m max. 135 m max.

24 V DC supplied externally

Network Specifications

2