Omron, K3SC Series

last update: December 19, 2013

• 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.

last update: December 19, 2013

last update: August 05, 2015

Ratings

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)
Ambient operating temperature	USB	0 to 55 °C (with no icing)
Ambient operating humidity		25% to 85% (with no condensation)
Ambient storage temperature		-20 to 65 °C

Characteristics

Item				Specification
Master device	RS-232C interface (See note 1.)	Maximum transmis- sion distance		15 m
	RS-232C interface (See note 1.)	Maximum number of connectable Units		1 Unit
	USB interface (See note 2.)	Maximum transmis- sion 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 transmis- sion distance		500 m
	RS-485 interface	Maximum number of connectable Units		31 Units (for multi-drop connection)
	RS-422 interface	Maximum transmis- sion distance		500 m
	RS-422 interface	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	Commu- nications	Phototransistor coupler
		Isolation method	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
Dielectric strength				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 ±1 μs, ±100 ns
Vibration resistance		Malfunction		10 to 55 Hz, 0.5-mm single amplitude for 10 minutes each in X, Y, and Z directions
Vibration resistance		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
Shock resistance		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)
Degree of protection (See note 3.)		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.)

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.

last update: August 05, 2015

last update: November 12, 2012

K3SC-10

last update: November 12, 2012

TITLE	DOCUMENT TYPE	SIZE
K3SC	Data Sheet	1111 KB
K3SC	K3SC-10 Interface converter Instruction Sheet (ENG/JPN)	302 KB

Application Examples

Ratings

Characteristics

K3SC-10

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