Omron EtherNet/IP Unit CS1W-EIP21S in Stock
EtherNet/IP part, 180000 words data capacity, 256 connections max, 100Base-TX speed, secure network features, user authentication, CPU bus class, 8 parts max per rack.
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Key Features and Technical Specifications
The OMRON CS1W-EIP21S is a CS-series EtherNet/IP unit that delivers massive tag data link capacity, enterprise-level security, and seamless multi-vendor Ethernet connectivity — no ladder programming required for data exchange.
| Item | Specification |
|---|---|
| Model Number | CS1W-EIP21S |
| Unit Classification | CS-series CPU Bus Unit |
| Applicable PLCs | CS1G-CPU@@H, CS1H-CPU@@H, CS1D-CPU@@HA/H, CS1D-CPU@@SA/S, CS1D-CPU@@P |
| Mounting Location | CPU Rack or Expansion Rack |
| Units per CPU Unit | 8 max. (including Expansion Racks) |
| Communication Protocol | EtherNet/IP (CIP), FINS/UDP, FINS/TCP, Socket Service, SNMP |
| Ethernet Interface | 100Base-TX / 10Base-T, Auto-Negotiation or fixed |
| Baud Rate | 100 Mbit/s (100Base-TX) |
| Transmission Media | Shielded twisted-pair (STP) cable, Categories 100 Ω at 5, 5e |
| Transmission Distance | 100 m (hub to node) |
| Media Access Method | CSMA/CD |
| Modulation Method | Baseband |
| Transmission Path | Star form |
| Tag Data Link Connections (max) | 256 connections per unit |
| Tag Data Link Nodes (max) | 256 nodes |
| Max Data Size per Connection | 722 words |
| Max Total Link Data per Node | 184,832 words |
| Packet Interval (Refresh Cycle) | 0.5 to 10,000 ms (in 0.5 ms increments) |
| Allowed Communications Bandwidth | 6,000 to 12,000 pps per unit |
| Number of Tag Sets | 256 (1 connection = 1 tag set) |
| Tags per Connection | 8 (7 when tag set includes PLC status) |
| Tag Types Supported | CIO Area, DM Area, EM Area, Holding Area, Work Area |
| Explicit Messaging (Class 3) | 128 connections |
| UCMM Clients / Servers | 32 max. / 32 max. |
| FINS/TCP Connections | 16 max. |
| SNMP Support | SNMPv1, SNMPv2c, SNMP trap (MIB-II) |
| CIP Routing | Supported (CS1W/CJ1W-EIP21, CJ2H-CPU6@-EIP, CJ2M-CPU3@) |
| EtherNet/IP Conformance Test | CT17 |
| Allocated CIO Area Words | 25 words/unit |
| Allocated DM Area Words | 100 words/unit |
| Security Functions | Secure Communications, User Authentication, Port Open/Close, IP Packet Filtering, Operation Log |
| Connector Type | RJ45 8-pin Modular Connector (ISO 8877 / IEEE 802.3) |
| Current Consumption | 620 mA max. at 5 V DC |
| Weight | 180 g max. |
| Dimensions (W × H × D) | 35 × 130 × 101 mm |
| Standards / Certifications | UC1 (cULus Class I Div. 2), N (NK), L (Lloyd's), CE (EC Directives) |
| Network Configurator Version | Version 3.74a or higher (CX-One version 4.61 or higher) |
| Multicast Packet Filter | Supported (IGMP client) |
| Online Parameter Change | Supported (without stopping the network) |
Fast and Safe Network Rules
Plants need safe facts. This omron part locks your facts tight. It uses a strong port to share things fast but it blocks bad data instantly. It has a smart IP packet filter. It checks user log-ins. No bad guys can get in.
Huge Capacity for Data Links
Small parts fail under heavy loads. This device powers through big jobs. It can hold up to 180,000 words or more. You can set up data links fast. No coding is needed. Just plug it in. It tracks each node on the line. It never drops a beat.
Why Buy This CPU Unit From Us?
We ship all over the world. A bad cpu unit stops your work. We stop that from happening. We have a large number of new original stocks. We support global delivery within 24 hours. We provide technical support and worry-free after-sales service. Fill in the inquiry form now!
Frequently Asked Questions
It links machines in your plant. It shares facts fast and safely.
Yes! We have a large number of new original stocks. We support global delivery within 24 hours.
No, it is very simple. You do not need to write hard code.
Yes, we provide full technical support. We offer worry-free after-sales care.
