Environmentally Resistant and Highly Reliable
Ethernet Communications for Production Sites
The W4S1 Switching Hub from OMRON is a low-cost, unmanaged switch that does not require software settings to maintain superior
reliability and consistent control data performance on an Ethernet/IP network. It can be used with confidence because it carries a brand
name well known at production sites and because it is backed by OMRON’s total support package for products ranging from PLCs to
switching hubs.
Environmentally Resistant
Perfect Fit for Factory Automation Environments
Tough environmental resistance assures users that the W4S1 Switching Hub can perform in any
environment where PLCs and robots are found. Add to this simple DIN track mounting and well-thought
out cable mounting angles and the result is a significant reduction in the man-hours and space
requirements for control panel installation.
Tempe
ra
ture
Noise
Vibratio
n
DIN tra
24 VDC
ck mou
nting
Static e
lectricit
y
Highly Reliable
Enhanced Network Reliability
The W4S1 Switching Hub is an unmanaged switch that is fully capable of failure detection and broadcast
storm detection. It improves network reliability by notifying users immediately via contact outputs and
LED indicators when an error occurs to quickly pinpoint the location of the error.
Failure Notification
LED indicators and
external outputs notify
users when an SW-LSI or
microcomputer error has
occurred.
Broadcast Storm Detection and Suppression
The W4S1 Switching Hub detects and suppresses broadcast storms that occur
when switches are accidentally connected in a loop.
LED in
dicator
Error d
etectio
n
LED in
dicator
s
s
Broadcast storms that
exceed the threshold are
detected and removed.
Ordering Information
International Standards
・The
standards are abbreviated as follows: UC: cULus and CE: EC Directives.
・Contact
your OMRON representative for futher details applicable conditions for these standards.
Product name
Industrial
Switching Hubs
Specifications
Current
Accessories
No. of ports Failure detection consumption (A)
Functions
Quality of Service (QoS):
0.08
3
NO
· Power supply connector
EtherNet/IP control data priority
NO
5
Failure detection:
0.12
· Power supply connector
Broadcast storm and LSI error detection
5
YES
10/100BASE-TX, Auto-Negotiation
· Connector for informing error
Model
W4S1-03B
W4S1-05B
W4S1-05C
Standards
UC, CE
CE
(Unit: mm)
Summary of Functions
No. of ports (RJ45)
Ethernet standards
Auto MDI/MDI-X
Auto Negotiation
Store-and-Forward system
Buffer
MAC addresses
SW-LSI and microcomputer
error detection
Broadcast storm detection
QoS for EtherNet/IP
SNMP
VLAN
STP
IGMP Snooping
Port mirroring
W4S1-03B
W4S1-05B
W4S1-05C
3
5
5
IEEE 802.3 10BASE-T,100BASE-TX
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
80 KB
2,000
Not supported
Not supported
Supported
Not Supported
Not Supported
Not Supported
Not Supported
Not Supported
Not supported
Not supported
Supported
Not Supported
Not Supported
Not Supported
Not Supported
Not Supported
Supported
Supported
Supported
Not Supported
Not Supported
Not Supported
Not Supported
Not Supported
Dimensions
W4S1-03B
78
25
1.2
90
25°
25°
25°
25°
8
23.6
44.6
65.6
82.6
MOVING POSITION
2.72
Specifications
Power supply voltage
Power consumption
Inrush current
Switching capacity
(Switching fabric)
*1
Throughput
*2
Dielectric strength
EMI and EMS
Vibration and shock resistance
Setting method
Ambient operating environment
Ambient operating temperature
Ambient operating humidity
Ambient storage temperature
International standards (See note.)
24 VDC ±5%
1.92 W max, (WS41-03B)
2.88 W max, (WS41-05B/WS41-05C)
lp = 1.42 A
3-port model: 500 Mbps
5-port model: 700 Mbps
148,800 pps
1 mA at 250 VAC for 1 minute
(Between LAN connectors, between error output connectors,
and between FG and power supply connectors)
EN: 61000-6-4 2007 and EN: 61000-6-2 2005
Complies with JIS C60028-2-6 and JIS C60068-2-27
Settings are made in the Switching Hub.
No corrosive gas
0 to 55°C (with no icing and no condensation)
10% to 90% (with no condensation)
-20 to 75°C (with icing and no condensation)
EC Directives
W4S1-05B
W4S1-05C
78
48
10.3 10.3
90
25°
25°
25°
25°
8
23.6
44.6
65.6
13.5
5.1
6.9
23
13.72
5.1
82.6
MOVING POSITION
Note: Contact your OMRON representative for further details and applicable conditions for these standards.
*1.
Switching capacity per Unit.
*2.
Maximum throughput for 64-byte data at 100 Mbps.
Throughput per port. There is no difference between the models (3-port and 5-port models).
The application examples provided in this catalog are for reference only. Check functions and safety of the equipment before use.
Never use the products for any application requiring special safety requirements, such as nuclear energy control systems, railroad systems, aviation systems, medical equipment, amusement
machines, vehicles, safety equipment, or other application involving serious risk to life or property, without ensuring that the system as a whole has been designed to address the risks, and
that the OMRON products are properly rated and installed for the intended use within the overall equipment or system.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and
workmanship for a period of one year (or other period if specified) from date of sale by
OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED,
REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR
PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER
OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE
REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL
DAMAGES, LOSS OF PROFITS, OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH
THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY,
NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the
product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER
CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE
PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND
NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION
OR REPAIR.
Note: Do not use this document to operate the Unit.
OMRON Corporation
Tokyo, JAPAN
Industrial Automation Company
Authorized Distributor:
Contact: www.ia.omron.com
Regional Headquarters
OMRON EUROPE B.V.
Wegalaan 67-69-2132 JD Hoofddorp
The Netherlands
Tel: (31)2356-81-300/Fax: (31)2356-81-388
OMRON ASIA PACIFIC PTE. LTD.
No. 438A Alexandra Road # 05-05/08 (Lobby 2),
Alexandra Technopark,
Singapore 119967
Tel: (65) 6835-3011/Fax: (65) 6835-2711
OMRON ELECTRONICS LLC
One Commerce Drive Schaumburg,
IL 60173-5302 U.S.A.
Tel: (1) 847-843-7900/Fax: (1) 847-843-7787
OMRON (CHINA) CO., LTD.
Room 2211, Bank of China Tower,
200 Yin Cheng Zhong Road,
PuDong New Area, Shanghai, 200120, China
Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200
© OMRON Corporation 2009-2013 All Rights Reserved.
In the interest of product improvement,
specifications are subject to change without notice.
CSM_3_1_0514
Printed in Japan
Cat. No. V227-E1-03
0413 (1008)
13.4