K32-23209 - OMRON - Product.Network

CSM_K3SC_DS_E_4_2

Interface Converter

K3SC

A compact converter that allows

communications between RS-232C/USB and

RS-422/485 devices. Ideal for industrial

applications.

• Allows communications between RS-232C/USB (Universal

Serial Bus) and RS-422/485 devices.

• Applicable in FA environments: Has passed environment

resistance tests equivalent to those for control devices.

• CE marking (except for USB).

• UL/CSA certification (mark license recognition).

• Compact 30-mm-wide body supports both screw-mounting and

DIN track mounting.

• Operation either with or without echoback available.

• Functionality to convert between USB and RS-232C

communications added.

• USB driver providing virtual communications port for USB

communications is available.

Note: To use USB communications, the USB driver for the K3SC must be

downloaded from the OMRON web site.

Application Examples

•Data can be transferred between computers (using the USB port if

there is no RS-232C port) and field devices.

•Using two K3SC Units enables long-distance communications between

devices connected via RS-232C.

Refer to Safety Precautions on page 8.

Ordering Information

■List of Models

Appearance Size (mm) Power supply voltage Model

30 × 80 × 78 (W × H × D) 100 to 240 VAC K3SC-10 100 to 240 VAC

24 VAC/VDC K3SC-10 24 VAC/VDC

K3SC

■Accessories (Order Separately)

Adapter for RS-232C Serial Cable and K3SC (D-Sub, 9-pin, male)

Specifications

■Ratings

Appearance Wiring diagram Model

K32-23209

Pin Signal

D-Sub, 9-pin

M3.5 terminals

SD (orange)

RD (white)

SG (gray)

Send data

Receive data

Signal ground

Request to send

Clear to send

Data set ready

Data terminal ready

Item K3SC-10 100 to 240 VAC K3SC-10 24 VAC/VDC

Supply voltage 100 to 240 VAC 50/60 Hz 24 VAC 50/60 Hz, 24 VDC

Operating voltage range 85% to 110% of power supply voltage

Power consumption 5 VA max. 3 VA max./3 W max.

Master/slave device communications format

(Select one of the formats listed on the right

using the DIP switch.)

Master Device Slave Device

RS-232C or USB RS-485, half duplex

RS-232C or USB RS-422, full duplex

USB RS-232C, full duplex

Communications method Start-stop synchronization

Ambient operating

temperature

RS-232C –10 to 55 °C (with no icing)

USB 0 to 55 °C (with no icing)

Ambient operating humidity 25% to 85% (with no condensation)

Ambient storage temperature –20 to 65 °C

K3SC

■Characteristics

Note: 1. With RS-232C communications, free-run mode is supported for SD and RD but not for any other signal lines.

2. To use USB communications, the USB driver for the K3SC must be downloaded from the OMRON web site.

http://www.fa.omron.co.jp/

3. The enclosure ratings do not apply when USB is used.

4. The CE marking does not apply when the K3SC is used for USB.

Item Specification

Master device

RS-232C

interface

(See note 1.)

Maximum transmission

distance

15 m

Maximum number of

connectable Units

1 Unit

USB interface

(See note 2.)

Maximum transmission

distance

5 m; hub delay time + cable delay time ≤ 70 ns

Maximum number of

connectable Units

1 Unit

USB standard V1.1

Slave device

RS-485

interface

Maximum transmission

distance

500 m

Maximum number of

connectable Units

31 Units (for multi-drop connection)

RS-422

interface

Maximum transmission

distance

500 m

Maximum number of

connectable Units

1 Unit

Baud rate 1,200/2,400/4,800/9,600/19,200/38,400 (bps)

Default setting: 9,600

Data length 7/8 bits

Default setting: 7

Stop bit length 1/2 bits

Default setting: 2

Communications parity None/even/odd

Default setting: Even

Echoback selection Echoback: With/without

Default setting: Without

Selection switch response delay Approx. 30 ms

Insulation resistance 20 MΩ min. measured at 500 VDC between the following:

External terminals ↔ casing

RS-232C terminals and USB port ↔ RS-422/485 terminals ↔ power supply terminals

Isolation

method

Communi-

cations

Phototransistor coupler

Power

supply

Isolating transformer

Dielectric strength 1,500 VAC for 1 minute measured between the following:

External terminals ↔ casing

RS-232C terminals, USB port, RS-422 terminals, and RS-485 terminals ↔ power supply terminals

500 VAC for 1 minute measured between the following:

RS-232C terminals and USB port ↔ RS-422 terminals and RS-485 terminals

Noise immunity AC power supply terminals, normal/common mode: ±1,500 V

AC/DC power supply terminals, normal mode: ±480 V; common mode: ±1,500 V

Square wave with 1-ns rising edge ±1μs, ±100 ns

Vibration resistance Malfunction 10 to 55 Hz, 0.5-mm single amplitude for 10 minutes each in X, Y, and Z directions

Destruction 10 to 55 Hz, 0.75-mm single amplitude for 2 hours each in X, Y, and Z directions

Shock resistance Malfunction 98 m/s2 3 times each in X, Y, and Z directions

Destruction 294 m/s2 3 times each in X, Y, and Z directions

Weight Approx. 150 g

Degree of protection

(See note 3.)

Front panel operation

parts

Conforms to IEC standards, equivalent to IP20 (when terminal cover mounted)

Terminals Equivalent to VDE 0106/100 (when terminal cover mounted)

EMC (EMI) EN61326-1 Industrial electromagnetic environment

Emission Enclosure: CISPR 11 Group 1 class A: CISRP16-1/-2

Emission AC Mains: CISPR 11 Group 1 class A: CISRP16-1/-2

(EMS) EN61326-1 Industrial electromagnetic environment

Immunity ESD: EN61000-4-2: 4 kV contact discharge (level 2)

8 kV air discharge (level 3)

Immunity RF-interference: EN61000-4-3: 10 V/m (amplitude-modulated,

80 MHz to 1 GHz) (level 3)

Immunity Fast Transient Noise: EN61000-4-4: 2 kV (power line) (level 3)

Immunity Burst Noise: 1 kV line to line (I/O signal line)

Immunity Surge: EN61000-4-5: 1 kV line to line

2 kV line to ground (power line)

Immunity Conducted Disturbance EN61000-4-6: 3 V (0.15 to 80 MHz) (level 2)

Immunity Voltage Dip/Interrupting EN61000-4-11: 0.5 cycles, 0, 180°, 100% (rated voltage)

Approved standards UL508,

Conforms to EN61326-1, EN61010-1 (IEC61010-1)

Memory protection No protective functions (Communications data is not protected for power interruptions during communications.)

K3SC

Connections

■Terminal Specifications

Be sure to check the input and output specifications for the signal pins of connected devices before connecting the terminals.

Note: Terminals 2 and 10 are not used.

■Internal Configuration (Block Diagram)

Function Terminal

number

Name Signal direction Explanation

For connecting the

operating power supply

1 and 4 PWR --- The input power supply specifications vary with the model.

A 100 to 240-VAC model and a 24-VAC/VDC (no-polarity) mod-

el are available.

Connection terminals for

RS-232C

communications with

master device

(DIP switch pin 8: OFF)

3 SG --- Connect to signal ground.

5 SD Input Receives data from SD of the master device.

6 RD Output Sends data to RD of the master device.

Used for RS-485

communications with slave

device

(DIP switch pin 9: OFF)

8RDA(−) Input/output SD and RD for RS-485 (cold side)

Terminals 8 and 9 are connected internally when pin 9 of the

DIP switch is set to OFF.

9SDA(−)

11 RDB(+) Input/output SD and RD for RS-485 (hot side)

Terminals 11 and 12 are connected internally when pin 9 of the

DIP switch is set to OFF.

12 SDB(+)

Used for RS-422

communications with slave

device

(DIP switch pin 9: ON)

7 SG --- Connect to signal ground.

8RDA(−) Input Receives RS-422 data and outputs it to the master side.

9SDA(−) Output Converts data received via RS-232C from the master device to

RS-422 data and outputs the data.

11 RDB(+) Input Receives RS-422 data and outputs it to the master side.

12 SDB(+) Output Converts data received via RS-232C from the master device to

RS-422 data and outputs the data.

DIP switch Status

indicator

Power

indicator

PHC

RS-232C

USB USB

controller

RS-232C

driver

DIP switch Status

indicator

Power

indicator

Power

supply

Switch input

USB control

Indicator control

Serial

communi-

cations

RS-485 enabling

control

RS-485 driver RS-422 or

RS-485

Insulation

Serial

communi-

cations

CPU

PHC

K3SC

■External Connections

RS-485 Connection

Note: 1. If RS-485 is selected as the communications method (i.e.,

pin 9 of the DIP switch is set to OFF), terminals 8 and 9, and

terminals 11 and 12 are connected internally.

2. Either a 100 to 240-VAC or 24-VAC/VDC (no polarity) input

power supply is used.

RS-422 Connection

Note: Either a 100 to 240-VAC or 24-VAC/VDC (no polarity) input

power supply is used.

Connecting an RS-232C or USB Master Device to an RS-422/485 Slave Device

First set the same communications conditions (baud rate, stop bits, data length, and parity) for the master device, the Interface Converter, and

slave devices.

Note: 1. 1-to-N connection via OMRON NT Link communications is not supported.

2. If the communications interface format for the master device is USB, obtain a commercially available USB cable and download the USB

driver for the K3SC from the OMRON web site.

Connecting a USB Master Device to an RS-232C Slave Device

First set the same communications conditions (baud rate, stop bits, data length, and parity) for the master device, the Interface Converter, and

slave devices.

Note: There is no isolation between the USB and RS-232C sides.

(−)

(+)

789

10 11 12

456

123

K3SC

Input power supply

(See note 2.)

(See note 1.)

Slave device side

RS-485

Master device side

RS-232C

Abbre-

viation

SD RD

Pin number (for 9-pin

computer connector)

789

10 11 12

456

123

K3SC

Slave device side

RS-422

Master device side

RS-232C

SD RD

Input power supply

(See note.)

Abbre-

viation

Pin number (for 9-pin

computer connector)

Abbreviation

SDA (−)

SDB (+)

RDA (−)

RDB (+)

RDA (

−

)SDA (

−

)

RDB (+) SDB (+)

AL1

AL2

STP

CMW

K3SC

K32-23209

If the communications interface format

for the master device is RS-232C, set

pin 8 of the DIP switch to OFF.

Computer

Note: To allow connection using a commercially available cable with an

RS-232C D-sub connector, a connection adapter (D-sub, 9-pin) is

available. (Order separately; model number: K32-23209.) Note: With RS-485 communications, connect a terminating resis-

tance (120 Ω, 1/2 W recommended) to both ends of the com-

munications path.

In addition to the required communications

conditions, set the communications number.

Devices connected

via RS-485 (example)

Wire with

stranded wires.

Cable with RS-232C D-sub connector

Computer

Note: Use a commercially available USB cable. K3SC

USB connection

Set pin 8 of the DIP switch to ON to select

the following communications format:

Master device: USB; Slave device: RS-232C

Measuring/testing device

RS-232C

Note: The USB driver is available

from the OMRON web site.

http://www.fa.omron.co.jp/

Wire with stranded wires.

K3SC

Operation

■Communications Settings Switch

Use this switch to set the communications conditions for the K3SC to those used by connected devices.

Note: 1. All pins are factory-set to OFF.

2. When using RS-422 full-duplex communications, turn OFF pin 0.

3. When using the communications configuration with RS-232C or USB set for the master device and RS-422 or RS-485 set for the slave

device, use either RS-232C or USB (but not both) on the master device side.

Nomenclature

Setting

ON↔OFF

Baud rate Data length Stop bits Parity Configuration Echoback

1,200

bps

2,400

bps

4,800

bps

9,600

bps

19,200

bps

38,400

bps

7 8 2 1 Even Odd None Master:

USB

Master:

RS-232C

or USB

(See note.)

OFF

(with-

out)

(with)

Slave:

RS-

232C

Slave:

RS-

485

Slave:

RS-

422

ON OFF ON OFF ON OFF

OFF ON ON OFF OFF ON

OFF OFF OFF OFF ON ON

OFF ON

OFF ON OFF

OFF OFF ON

ON OFF

OFF ON

K3SC without Terminal CoverTerminal Cover

Caution: Be sure to use the K3SC-10 with

the terminal cover mounted

when using in machinery that

must conform to EN/IEC stan-

dards.

Note: Cover the terminals to prevent electric shock.

Power Indicator

Lights (green) when

power is supplied.

Communications Setting Switch

Used to set the communications conditions for

connected devices.

Communications Setting Switch

Switch Setting

Baud rate

Data length

Parity

Master device

Slave device

Echoback

Communications Status Indicators

Light (yellow) during communications.

• RS-232C/USB ↔ RS-422/485:

RD: Lights when receiving RS-422/485 communications.

SD: Lights when sending RS-422/485 communications.

• USB ↔ RS-232C:

RD: Lights when receiving RS-232C communications.

SD: Lights when sending RS-232C communications.

USB Port

Port for USB connections. Use this port

if the master device is a USB device.

M3.5 Terminal Screw

K3SC

Dimensions

K3SC-10

51.523.53

72±0.3

Mounting Hole Dimensions

(For Direct Mounting)

Two, M4 or 4.3-dia. holes

Note: DIN track mounting is also possible.

K3SC

Safety Precautions

!CAUTION

■General Precautions

•Do not mount the product in the following places:

1. Locations subject to shock or vibration

2. Outdoor locations or locations subject to direct sunlight, wind, or

rain.

3. Locations subject to temperatures or humidity outside the

specified ranges

4. Locations subject to condensation or icing

5. Locations subject to large amounts of dust

6. Locations subject to flammable gases or objects

7. Locations subject to corrosive gases (in particular sulfide or

ammonia gases)

•Be sure to check power supply specifications, terminal numbers,

and polarities before performing wiring.

•Turn OFF the power supply before performing installation or wiring.

•Turn OFF the power supply before removing the terminal cover.

Accidentally touching the terminals may result in electric shock.

•Do not connect anything to unused terminals.

■Correct Use

•Perform wiring with crimp terminals that are suitable for M3.5

screws.

•Install the product as far away as possible from devices that

generate strong high-frequency noise (e.g., high-frequency

welders) or surges.

•Do not pull on the USB cable. Doing so may cause the cable to

come loose.

•Almost all application programs run with the K3SC driver, which

provides a virtual communications port for USB communications.

Some application programs do not run, because this driver does

not support all of the API functions.

•The K3SC-10 is not simply a voltage level converter.

Communications data is converted by a built-in CPU. Depending on

communications conditions, processing may not be able to keep up

with communications, and occasionally data corruption or data

omissions may occur. If necessary, reduce the baud rate or the

frequency of communications, or take other suitable

countermeasures.

Do not touch any of the terminals while power is being

supplied. Doing so may result in electric shock.

Do not allow metal objects or wire cuttings to enter the

product. Doing so may result in electric shock, fire, or

malfunction.

Do not attempt to disassemble, repair, or modify the

product. Any attempt to do so may result in malfunction,

fire, or electric shock.

Make sure that the power supply voltage is within the

specified range. Otherwise, damage or burning may

result.

Be sure to tighten the terminal screws to the specified

torque. Loose screws may result in burning or

malfunction. The recommended tightening torque is

0.78 N·m.

In the interest of product improvement, specifications are subject to change without notice.

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

Terms and Conditions Agreement

Read and understand this catalog.

Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you

have any questions or comments.

Warranties.

(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship

for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron

disclaims all other warranties, express or implied.

(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT

NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER

ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE

PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.

Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the

Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at

Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or

replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount

equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,

repair, indemnity or any other claims or expenses 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. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall

not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or

electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,

recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above

warranty.

See http://www.omron.com/global/ or contact your Omron representative for published information.

Limitation on Liability; Etc.

OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,

LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,

WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.

Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.

Suitability of Use.

Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the

combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable

third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself

is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,

system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product

with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.

NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE

QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,

AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE

OVERALL EQUIPMENT OR SYSTEM.

Programmable Products.

Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence

thereof.

Performance Data.

Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining

suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate

it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.

Change in Specifications.

Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our

practice to change part numbers when published ratings or features are changed, or when significant construction changes are

made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers

may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at

any time to confirm actual specifications of purchased Product.

Errors and Omissions.

Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is

assumed for clerical, typographical or proofreading errors or omissions.

2016.4

In the interest of product improvement, specifications are subject to change without notice.

OMRON Corporation

Industrial Automation Company

http://www.ia.omron.com/