CS Seri Ethernet unit CS1W-EIP21

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.

EtherNet/IP Unit

Unit type	Product name	Specifications			No. of unit numbers allocated	Current consump- tion (A)		Model	Stand- ards
		Communi- cations cable	Communi- cations functions	Units per CPU Unit		5 V sys- tem	24 V sys- tem
CS1 CPU Bus Unit	EtherNet/IP Unit	Shielded twisted- pair (STP) cable Categories: 100 Ω at 5, 5e	Tag Data Link Functions, Message Communications Functions	8 max.	1	0.41	---	CS1W-EIP21	UC1, N, L, CE

Industrial Switching Hubs

Product  name	Appearance	Specifications			Accessories	Current  consump-  tion (A)	Model	Stand-  ards
		Functions	No.  of  pors	Failure  detec-  tion
Industrial  Switching  Hubs		Quality of Service  (QoS): EtherNet/IP  control data priority  Failure detection:  Broadcast storm and  LSI error detection  10/100BASE-TX,  Auto-Negotiation	3	No	Power supply  connector	0.22	W4S1-03B	UC, CE
			5	No		0.22	W4S1-05B
			5	Yes	Power supply  connector  Connector  for informing  error	0.22	W4S1-05C	CE

EtherNet/IP Unit Specifications

Item		Specifications
Model number		CS1W-EIP21
Type		100Base-TX (See note.)
Applicable PLCs		CS-series PLCs
Unit classification		CS-series CPU Bus Unit
Mounting location		CPU Rack or Expansion Rack
Number of Units that can be mounted		8 max. (including Expansion Racks)
CPU Unit words used	Allocated CIO Area words (CPU Bus Unit words)	25 words/Unit (one unit number's words)
		These words contain control bits and flags, the target node PLC's operating and error information, Unit status, communications status, registered/normal target node information, and FINS/TCP connection status.
	Allocated DM Area words (CPU Bus Unit words)	100 words/Unit (one unit number's words)
		These words contain the IP address display/setting area
	User-set area	Any usable data area words
		Target node PLC's operating and error information, and registered/normal target node information
	CPU Bus Unit System Setup	Not used.
Non-volatile memory within EtherNet/IP Unit (See note.)		The following settings are stored in the EtherNet/IP Unit's non-volatile memory. Note: Unlike the regular Ethernet Units, the CPU Bus Unit Setup Area in the CPU Unit is not used for these settings. 1. Unit setup (communications settings for the EtherNet/IP Unit, such as the IP address, DNS server settings, host name, baud rate, FINS/UDP settings, and FINS/TCP settings) 2. Tag data link settings (device parameters)
Transfer specifications	Media access method	CSMA/CD
	Modulation method	Baseband
	Transmission paths	Star form
	Baud rate	100 Mbit/s (100Base-TX)
	Transmission media	Shielded twisted-pair (STP) cable Categories: 100 Ω at 5, 5e
	Transmission distance	100 m (distance between hub and node)
	Number of cascade connections	There is no limitation when a switching hub is used.
Current consumption (Unit)		410 mA max. at 5 V DC
Weight		171 g max.
Dimensions		35 × 130 × 101 mm (W × H × D)
Other general specifications		Other specifications conform to the general specifications of the CS-series

Note: If tag data links are being used, use 100Base-TX. Otherwise, 10Base-T can be used, but this is not recommended.

Communications Specifications

Item			Specifications
CIP  service	Tag data  links  (Cyclic  communi-  cations)	Number of connections	256
		Packet interval  (refresh cycle)	0.5 to 10,000 ms (in 0.5-ms units)  Can be set independently for each connection.  (Data is refreshed over the network at the preset interval and  does not depend on the number of nodes.)
		Maximum allowed  communications  bandwidth per Unit	6,000 to 12,000 pps *1 *2
		Number of tag sets	256
		Tag types	CIO Area, DM Area, EM Area, Holding Area, and Work Area
		Number of tags per  connection (= 1 tag set)	8 (7 tags when the tag set contains the PLC status)
		Maximum link data size  per node	184,832 words
		Maximum data size per  connection	252 words or 722 words *3  Note: Data synchronicity is maintained within each connection.
		Number of registrable  tag sets	256  (1 connection = 1 tag set)
		Maximum size of 1 tag  set	722 words  (The PLC status uses 1 word when the tag set contains the PLC  status.)
		Maximum number of  tags that can be  refreshed per CPU Unit  cycle *4	Output/Transmission (CPU to EtherNet/IP): 19  Input/Reception (EtherNet/IP to CPU): 20 *5
		Data that can be  refreshed per CPU Unit  cycle *4	Output/Transmission (CPU to EtherNet/IP): 7,405 words  Input/Reception (EtherNet/IP to CPU): 7,405 words
		Changing tag data link  parameters during  operation	Supported *6
		Multicast packet filter  function *7	Supported
	Explicit  messaging	Class 3 (connected)	Number of connections: 128
		UCMM (unconnected)	Number of clients that can communicate at one time: 32 max.  Number of servers that can communicate at one time: 32 max.
		CIP routing	CS1W-EIP21, CJ1W-EIP21, CJ2H-CPU6[]-EIP, CJ2M-CPU3[]
FINS service		FINS/UDP	Supported
		FINS/TCP	16 connections max.
EtherNet/IP conformance test			Conforms to A5
Ethernet interface			10BASE-T or 100BASE-TX  Auto Negotiation or fixed settings

*1. In this case, pps means "packets per second" and indicates the number of packets that can be processed in one 

       second. 

*2. To use 505 to 1,444 bytes as the data size, the system must support the Large Forward Open standard (an optional 

       CIP specification). The CS/CJ-series Units support this standard, but before connecting to nodes of other companies, 

       confirm that those devices also support it. 

*3. If the maximum data size is exceeded, the data refreshing with the CPU Unit will extend over two or more cycles. 

*4. If status layout is selected in the user settings, the maximum number of tags that can be received is 19 tags. 

*5. If parameters are changed in the EtherNet/IP Unit, however, the EtherNet/IP Unit will be restarted. When other nodes 

       are communicating with the affected node, the communications will temporarily time out and automatically recover 

       later. 

*6. Because the EtherNet/IP Unit is equipped with an IGMP client, unnecessary multicast packets can be filtered by using 

       a switching hub that supports IGMP snooping. 

*7. The EtherNet/IP Unit uses the TCP/UDP port numbers shown in the following table.

Service	Protocol	Port number	Remarks
Tag data links	UDP	2222	Fixed value
Class 3, UCMM	TCP/UDP	44818
DNS	UDP	53
FINS/UDP service	UDP	9600	Port numbers in the Unit Setup can be changed with the CX-Programmer.
FINS/TCP service	TCP	9600
FTP	TCP	20, 21
SNTP	UDP	123
SNMP	UDP	161
SNMP trap	UDP	162

Network Configurator Requirements

The Network Configurator Ver. 3.0 or higher is a software package designed for building, setting, and controlling a multi-vendor EtherNet/IP Network using OMRON's EtherNet/IP. It is included in CX-One. The Network Configurator provides the following functions for building, setting, and controlling EtherNet/IP.

Item		Specification
Operating environment		CXONE-AL[][]D-V[]
Network connection method		CS1/CJ1	CJ2
	Serial interface	CPU Unit's Peripheral or RS-232C port	CPU Unit's USB or RS-232C port
	Ethernet interface	EtherNet/IP Unit's Ethernet port	CPU Unit's Ethernet port EtherNet/IP Unit's Ethernet port
Location on Network		A single node address is used (only when directly connected to EtherNet/IP).
Number of Units that can be connected to Network		A single Network Configurator per Network (More than one Configurator cannot be used in the same system.)
Main functions	Network control functions	The Network configuration can be created and edited regardless of whether the Network Configurator is online or offline. The Network configuration can be read from a file or the network.
	Configuration functions	The EDS files used by the Network Configurator can be installed and deleted.
Supported file formats		Configurator network configuration files (*.ncf) Configuration files (*.ncf) created using the Network Configurator for EtherNet/IP (version 2) can be imported by selecting External Data - Import from the File Menu.

CS1W-EIP21