Interface Converter K3SC CSM_K3SC_DS_E_4_2 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. Refer to Safety Precautions on page 8. 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. Ordering Information ■ List of Models Appearance Size (mm) 30 × 80 × 78 (W × H × D) Power supply voltage Model 100 to 240 VAC K3SC-10 100 to 240 VAC 24 VAC/VDC K3SC-10 24 VAC/VDC 1 K3SC ■ Accessories (Order Separately) Adapter for RS-232C Serial Cable and K3SC (D-Sub, 9-pin, male) Appearance Wiring diagram Model K32-23209 D-Sub, 9-pin Send data 50 Receive data Signal ground Request to send Clear to send Data set ready Data terminal ready Pin 3 2 5 7 8 6 4 Signal SD RD SG RS CS DR ER M3.5 terminals SD (orange) RD (white) SG (gray) Specifications ■ Ratings Item K3SC-10 100 to 240 VAC Supply voltage 100 to 240 VAC 50/60 Hz Operating voltage range 85% to 110% of power supply voltage Power consumption 5 VA max. Master/slave device communications format Master Device (Select one of the formats listed on the right RS-232C or USB RS-232C or USB using the DIP switch.) USB K3SC-10 24 VAC/VDC 24 VAC 50/60 Hz, 24 VDC 3 VA max./3 W max. Slave Device RS-485, half duplex RS-422, full duplex 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 2 K3SC ■ Characteristics Slave device Master device Item Specification RS-232C interface (See note 1.) Maximum transmission 15 m distance USB interface (See note 2.) Maximum transmission 5 m; hub delay time + cable delay time ≤ 70 ns distance RS-485 interface Maximum number of connectable Units Maximum number of connectable Units 1 Unit USB standard V1.1 Maximum transmission 500 m distance Maximum number of connectable Units RS-422 interface 1 Unit 31 Units (for multi-drop connection) Maximum transmission 500 m distance 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 Communications 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 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 Noise immunity Vibration resistance Shock 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 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 Front panel operation parts Conforms to IEC standards, equivalent to IP20 (when terminal cover mounted) Weight Degree of protection (See note 3.) Approx. 150 g Terminals EMC Equivalent to VDE 0106/100 (when terminal cover mounted) (EMI) Emission Enclosure: Emission AC Mains: (EMS) Immunity ESD: Immunity RF-interference: Immunity Fast Transient Noise: Immunity Burst Noise: Immunity Surge: Immunity Conducted Disturbance Immunity Voltage Dip/Interrupting EN61326-1 Industrial electromagnetic environment CISPR 11 Group 1 class A: CISRP16-1/-2 CISPR 11 Group 1 class A: CISRP16-1/-2 EN61326-1 Industrial electromagnetic environment EN61000-4-2: 4 kV contact discharge (level 2) 8 kV air discharge (level 3) EN61000-4-3: 10 V/m (amplitude-modulated, 80 MHz to 1 GHz) (level 3) EN61000-4-4: 2 kV (power line) (level 3) 1 kV line to line (I/O signal line) EN61000-4-5: 1 kV line to line 2 kV line to ground (power line) EN61000-4-6: 3 V (0.15 to 80 MHz) (level 2) 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. 3 K3SC Connections ■ Terminal Specifications Be sure to check the input and output specifications for the signal pins of connected devices before connecting the terminals. 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) model 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 8 communications with slave 9 device (DIP switch pin 9: OFF) 11 RDA(−) 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. Input/output 12 SDB(+) 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. SG --- Connect to signal ground. RDA(−) Input Receives RS-422 data and outputs it to the master side. SDA(−) Output Converts data received via RS-232C from the master device to RS-422 data and outputs the data. SDA(−) RDB(+) Used for RS-422 7 communications with slave 8 device 9 (DIP switch pin 9: ON) 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. Note: Terminals 2 and 10 are not used. ■ Internal Configuration (Block Diagram) Status indicator DIP switch Indicator control Switch input RS-232C RS-232C driver Power indicator Serial communications Serial communications CPU Power supply PHC RS-485 driver RS-422 or RS-485 PHC RS-485 enabling control PHC USB USB controller USB control Insulation 4 K3SC ■ External Connections RS-485 Connection RS-422 Connection Slave device side RS-485 K3SC 7 8 9 10 11 12 (See note 1.) (See note 1.) Input power supply (See note 2.) 1 5 6 SD RD 2 3 SG Abbreviation SG SDA (−) SDB (+) RDA (−) RDB (+) (−) (+) 7 Master device side RS-232C 4 Slave device side RS-422 K3SC Abbreviation SD RD SG RS CS DR ER 8 9 SG RDA (−) SDA (−) 10 11 12 RDB (+) SDB (+) Pin number (for 9-pin computer connector) 3 2 5 7 8 6 4 Master device side RS-232C 4 Input power supply (See note.) 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. 1 5 6 SD RD 2 Abbreviation SD RD SG RS CS DR ER 3 SG Pin number (for 9-pin computer connector) 3 2 5 7 8 6 4 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. Devices connected via RS-485 (example) If the communications interface format for the master device is RS-232C, set pin 8 of the DIP switch to OFF. AL1 AL2 HB OT1 STP OT2 CMW Wire with stranded wires. Computer K3SC In addition to the required communications conditions, set the communications number. 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.) Cable with RS-232C D-sub connector Note: With RS-485 communications, connect a terminating resistance (120 Ω, 1/2 W recommended) to both ends of the communications path. K32-23209 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. Set pin 8 of the DIP switch to ON to select the following communications format: Master device: USB; Slave device: RS-232C RS-232C USB connection Note: Use a commercially available USB cable. K3SC Measuring/testing device Computer Note: The USB driver is available from the OMRON web site. http://www.fa.omron.co.jp/ Wire with stranded wires. 5 K3SC Operation ■ Communications Settings Switch Use this switch to set the communications conditions for the K3SC to those used by connected devices. Setting Baud rate 1,200 bps 2,400 bps 4,800 bps 9,600 bps Data length 19,200 bps 38,400 bps 7 8 Stop bits 2 1 Parity Even Odd Configuration None Master: USB ON↔OFF Slave: RS232C 1 ON OFF ON OFF ON OFF 2 OFF ON ON OFF OFF ON 3 OFF OFF OFF OFF ON ON OFF 4 Master: RS-232C or USB (See note.) Echoback OFF (without) ON (with) Slave: Slave: RSRS485 422 ON OFF 5 ON 6 OFF ON OFF 7 OFF OFF ON ON 8 OFF OFF 9 ON OFF 0 ON 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 Terminal Cover K3SC without Terminal Cover 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. Power Indicator Lights (green) when power is supplied. Communications Setting Switch Used to set the communications conditions for connected devices. USB Port Port for USB connections. Use this port if the master device is a USB device. Communications Setting Switch Note: Cover the terminals to prevent electric shock. Caution: Be sure to use the K3SC-10 with the terminal cover mounted when using in machinery that must conform to EN/IEC standards. Switch 1 2 3 4 5 6 7 8 9 10 Setting Baud rate M3.5 Terminal Screw Data length Parity Master device Slave device Echoback 6 K3SC Dimensions K3SC-10 7 Mounting Hole Dimensions (For Direct Mounting) Two, M4 or 4.3-dia. holes 75 80 30 3 23.5 51.5 78 72±0.3 Note: DIN track mounting is also possible. 7 K3SC Safety Precautions !CAUTION 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. ■ 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. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. In the interest of product improvement, specifications are subject to change without notice. 8 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. 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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/ (c)Copyright OMRON Corporation 2016 All Right Reserved.