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
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