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Interface Converter

K3SC

K3SC

A compact converter that allows communications between RS-232C/USB and RS-422/485 devices. Ideal for industrial applications.

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Ratings

ItemK3SC-10 100 to 240 VACK3SC-10 24 VAC/VDC
Supply voltage100 to 240 VAC 50/60 Hz24 VAC 50/60 Hz, 24 VDC
Operating voltage range85% to 110% of power supply voltage
Power consumption5 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 methodStart-stop synchronization
Ambient operating temperatureRS-232C-10 to 55 °C (with no icing)
USB0 to 55 °C (with no icing)
Ambient operating humidity25% to 85% (with no condensation)
Ambient storage temperature-20 to 65 °C

Characteristics

ItemSpecification
Master deviceRS-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 standardV1.1
Slave deviceRS-422/485 interfaceMaximum transmission
distance		500 m
Maximum number of
connectable Units		31 Units (for multi-drop connection)
Baud rate1,200/2,400/4,800/9,600/19,200/38,400 (bps)
Default setting: 9,600
Data length7/8 bits
Default setting: 7
Stop bit length1/2 bits
Default setting: 2
Communications parityNone/even/odd
Default setting: Even
Echoback selectionEchoback: With/without
Default setting: Without
Selection switch response delayApprox. 30 ms
Insulation resistance20 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
Insulation
resistance		Isolation
method		CommunicationsPhototransistor coupler
Power supplyIsolating transformer
Dielectric strength1,500 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 immunityAC 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 resistanceMalfunction10 to 55 Hz, 0.5-mm single amplitude for 10 minutes each in X, Y, and Z directions
Destruction10 to 55 Hz, 0.75-mm single amplitude for 2 hours each in X, Y, and Z directions
Shock resistanceMalfunction98 m/s2 3 times each in X, Y, and Z directions
Destruction294 m/s2 3 times each in X, Y, and Z directions
WeightApprox. 150 g
Degree of protection (See note 3.)Front panel
operation parts		Conforms to IEC standards, equivalent to IP20 (when terminal cover mounted)
TerminalsEquivalent to VDE 0106/100 (when terminal cover mounted)
EMC(EMI) EN61326+A1 Industry
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+A1 Industry
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 standardsUL508,
Conforms to EN61326+A1, EN61010-1 (IEC61010-1)
Memory protectionNo 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.

Caution: In the interenst of product improvement, specifications are subject to change without notice.

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