OMRON CS1W-DRM21-V1 specification

last update: August 21, 2013

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	Special 5-wire cables (2 signal lines, 2 power lines, 1 shield line) Special 4-wire flat cables (2 signal lines, 2 power lines)
Communications distances for special 5-wire cables	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.
Communications distances for special 4-wire flat cables	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.
Communications power supply	24 V DC supplied externally
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.

Network Specifications

Specifications

Communications power supply voltage				11 to 25 VDC *1
Current consumption				Communications: 30 mA max. Internal circuit: 290 mA max.
Max. number of connectable slaves	Remote I/O, explicit message service			63 *2
Max. number of I/O points	Fixed allocations		When used as a master	2,048 points
			When used as a slave	32 points
	User-set allocations	Using allocated DM Area words	When used as a master	16,000 points
			When used as a slave	3,200 points
		Using Configurator	When used as a master	32,000 points
			When used as a slave	4,800 points
Number of allocated words	Fixed allocations		When used as a master	64 input and 64 output words Software switch/status area: 25 words
			When used as a slave	1 input word, 1 output word *3
	User-set allocations	Using allocated DM Area words	When used as a master	500 input and 500 output words Software switch/status area: 25 words
			When used as a slave	100 input and 100 output words *3 Software switch/status area: 25 words
		Using Configurator	When used as a master	500 input words x 2 blocks, 500 output words x 2 blocks Software switch/Status area: 25 words
			When used as a slave	100 input words x 1 blocks, 100 output words x 2 blocks Software switch/Status area: 25 words
Max. message length				542 bytes *4
Max. number of Units mountable to PLC	Fixed allocations			3
	User-set allocations			16
Weight				172 g max.

*1. Refer to the DeviceNet Operation Manual (W267) for the communications power supply specifications.
*2. The Device Unit uses a node, and so connection is possible to 63 slaves only.
*3. When the DeviceNet is used as a slave, "input" and "output" respectively refer to input from the slave to the master
       and output from the master to the slave.
*4. The maximum message length includes the command code when using the CMND instruction

last update: August 21, 2013

OMRON CS1W-DRM21-V1 catalog

• Catalog
• Manual
• CAD

English

Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.

*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name	Catalog Number [size]	Last Update
CS1W-DRM21-V1 Data Sheet	- [851KB]	May 12, 201620160512	CS1W-DRM21-V1 Data Sheet

OMRON CS1W-DRM21-V1 lineup

last update: May 12, 2016

International Standards

• The standards are abbreviated as follows: U: UL, U1: UL(Class I Division 2 Products for Hazardous Locations), C: CSA, UC: cULus, UC1: cULus (Class I Division 2 Products for Hazardous Locations), CU: cUL, N: NK, L: Lloyd, and CE: EC Directives.
• Contact your OMRON representative for further details and applicable conditions for these standards.

Product		Appearance	Specifications			Model	Stand- ards
				Number of licenses	Media
DeviceNet Unit			For CS Series Functions as either a master or a slave. 2,048 I/O points			CS1W-DRM21-V1	UC1, N, L, CE
	CX-One FA Integrated Tool Package Ver.4.[]		The CX-One is a package that integrates the Support Software for OMRON PLCs and components. CX- One runs on the following OS. OS: Windows XP (Service Pack 3 or higher, 32-bit version)/ Windows Vista (32-bit/64-bit version)/ Windows 7 (32-bit/64-bit version)/ Windows 8 (32-bit/64-bit version)/ Windows 8.1 (32-bit/64-bit version)/ Windows 10 (32-bit/64-bit version) CX-One Ver.4.[] includes CX-Integrator Ver.2.[]. For details, refer to the CX-One catalog (Cat. No. R134).	1 license *	DVD	CXONE-AL01D-V4	-

* Multi licenses (3, 10, 30, or 50 licenses) and DVD media without licenses are also available for the CX-One.

last update: May 12, 2016

OMRON CS1W-DRM21-V1 dimension

last update: August 21, 2013

CS1W-DRM21-V1

last update: August 21, 2013

• NO. CS1W-DRM21-V1
• TYPE:Programmable Controllers CS1 CPU Bus Units
• DATE:2021-06-08
• Associated products:
  CS1W-FLN22 CS-series FL-net Unit/Features CS1D-ETN21D Ethernet Units/Features