Bulletin No. ICM4-C Drawing No. LP0416 Released 7/05 Tel +1 (717) 767-6511 Fax +1 (717) 764-0839 www.redlion.net MODEL ICM4 - SERIAL CONVERTER MODULE (RS232C/RS485) ALLOWS COMMUNICATIONS BETWEEN RS232 CONTROL EQUIPMENT AND PRODUCTS WITH RS485 SERIAL COMMUNICATIONS WIDE DC INPUT POWER RANGE (+9 to 32 VDC) HALF DUPLEX (RS485) AND FULL DUPLEX (RS422) LED INDICATION FOR RXD, TXD, and POWER UNIVERSAL MOUNTING FOOT FOR DIN RAIL INSTALLATION UL Recognized Component, File E179259 DESCRIPTION SPECIFICATIONS The ICM4 Serial Converter Module provides the capability of interfacing 1. POWER: +9 to 32 VDC 75 mA maximum. Above 26 VDC, derate max. equipment with RS485 serial communications to equipment with RS232 operating temperature to 40C. Power supply must be Class 2 or SELV rated. communications. Data format of the RS232 and RS485 equipment must be 2. RS232 VOLTAGES: the same. Receive Data Pin: 30 VDC max. For full duplex (RS422), the DIP switch on the side of the module must be in Mark Condition: 0.8 VDC the RS422 position. For half duplex (RS485), the DIP switch must be in the Space Condition: 2.4 VDC RS485 position. In half duplex mode, the RS485 driver is enabled using the Transmit Data Pin: leading edge of the first character transmitted (RXD input). After the last Mark Condition: 8 VDC (typ.) character transmits, the converter waits one character time (at 9600 baud) to Space Condition: +8 VDC (typ.) disable the RS485 driver. 3. RS485 VOLTAGES: There are 3 LEDs that can be viewed from the front of the converter module. Differential Output Voltage: 5VDC max. under no load A green power LED indicates power is on, a red RS232 TXD LED flashes when Differential Input Voltage: 5VDC max. the module is transmitting, and a green RS232 RXD LED flashes when the Mark Condition: 0.2 VDC module is receiving. Space Condition: +0.2 VDC An external DC power source (+9 to 32 VDC) is required to power the ICM4. RS485 Drive Capability: Up to 32 RS485 receivers connected in parallel. The external power source and serial communications connections are made via RS485 Drive Disable Time: 4 msec. max. a 12 position removable terminal block located on the front of the module. 4. MAXIMUM CABLE LENGTH: The unit is equipped with a universal mounting foot for attachment to RS232: 50 feet standard DIN style mounting rails, including top hat profile rail according to RS485: 4000 feet EN50022 - 35 x 7.5 and 35 x 15, and G profile rail according to EN50035 - G32. 5. BAUD RATE: 9600 min., 19200 max. 6. CERTIFICATIONS AND COMPLIANCES: SAFETY SAFETY SUMMARY UL Recognized Component, File E179259, UL3101-1, CSA C22.2 No. All safety related regulations, local codes and instructions that appear in the 1010-1 manual or on equipment must be observed to ensure personal safety and to Recognized to U.S. and Canadian requirements under the Component prevent damage to either the instrument or equipment connected to it. If Recognition Program of Underwriters Laboratories, Inc. equipment is used in a manner not specified by the manufacturer, the protection IECEE CB Scheme Test Certificate US/5141A/UL, provided by the equipment may be impaired. CB Scheme Test Report 01ME11540-0702001 Issued by Underwriters Laboratories, Inc. CAUTION: Risk of Danger. IEC 61010-1, EN 61010-1: Safety requirements for electrical Read complete instructions prior to installation and operation of the unit. equipment for measurement, control and laboratory use, Part 1. ELECTROMAGNETIC COMPATIBILITY Immunity to EN 50082-2 Electrostatic discharge EN 61000-4-2 Level 2 4 Kv contact DIMENSIONS In inches (mm) Level 3 8 Kv air Electromagnetic RF fields EN 61000-4-3 Level 3 10 V/m 80 MHz - 1 GHz Fast transients (burst) EN 61000-4-4 Level 4 2 Kv I/O Level 3 2 Kv power RF conducted interference EN 61000-4-6 Level 3 10 V/rms 150 KHz - 80 MHz Simulation of cordless telephone ENV 50204 Level 3 10 V/m 900 MHz 5 MHz 200 Hz, 50% duty cycle Emissions to EN 50081-1 RF interference EN 55022 Enclosure class B Refer to EMC Installation Guidelines for additional information. 1SPECIFICATIONS (Contd) SIDE VIEW OF ICM4 7. ENVIRONMENTAL CONDITIONS: Operating Temperature Range: 0 to 50C. Derate max. operating temperature to 40C above 26 VDC. Storage Temperature: -40 to + 75C Operating and Storage Humidity: 85% max.relative humidity (non-condensing) from 0 to 50C Altitude: Up to 2000 meters 8. CONSTRUCTION: Case body is green, high impact plastic. Installation Category I, Pollution Degree 2. 9. MOUNTING: Standard DIN rail top hat (T) profile rail according to EN50022- 35 X 7.5 and 35 X 15 10. WEIGHT: 3.2 oz. (90.7 g) EMC INSTALLATION GUIDELINES Although this unit is designed with a high degree of immunity to ElectroMagnetic Interference (EMI), proper installation and wiring methods must be followed to ensure compatibility in each application. The type of electrical noise, source or coupling method into the unit may be different for various installations. In extremely high EMI environments, additional measures may be needed. Cable length, routing and shield termination are very important and can mean the difference between a successful or a troublesome installation. Listed below are some EMC guidelines for successful installation in an industrial environment. 1. DC power to the unit should be relatively clean and within the specified limits. Connecting power to the unit from circuits that power inductive loads that cycle on and off, such as contactors, relays, motors, etc., should be avoided. This will reduce the chance of noise spikes entering the DC power connection and affecting the unit. 2. The shield (screen) pigtail connection should be made as short as possible. TYPICAL RS422 CONNECTIONS The connection point for the shield depends somewhat upon the application. Listed below are the recommended methods of connecting the shield, in order of their effectiveness. a. Connect the shield only at the unit to earth ground (protective earth). b. Connect the shield to earth ground at both ends of the cable, usually when the noise source frequency is above 1 MHz. c. Connect the shield to common of the unit and leave the other end of the shield unconnected and insulated from earth ground. 3. Never run Signal cables in the same conduit or raceway with AC power lines, conductors feeding motors, solenoids, SCR controls, and heaters, etc. The cables should be run in metal conduit that is properly grounded. This is especially useful in applications where cable runs are long and portable two- way radios are used in close proximity or if the installation is near a commercial radio transmitter. 4. Signal cables within an enclosure should be routed as far away as possible from contactors, control relays, transformers, and other noisy components. 5. In extremely high EMI environments, the use of external EMI suppression devices, such as ferrite suppression cores, is effective. Install them on Signal cables as close to the unit as possible. Loop the cable through the core several times or use multiple cores on each cable for additional protection. Notes: Install line filters on the power input cable to the unit to suppress power line 1. Connect shield drain wire to earth ground. interference. Install them near the power entry point of the enclosure. The 2. Place DIP switch on the side of the ICM4 in the 422 position. following EMI suppression devices (or equivalent) are recommended: 3. RS422 polarity: Terminal A is negative with respect to Terminal B in Ferrite Suppression Cores for signal cables: the mark (logic 1) condition. Fair-Rite 0443167251 (RLC FCOR0000) TDK ZCAT3035-1330A Steward 28B2029-0A0 Line Filters for input power cables: Schaffner FN610-1/07 (RLC LFIL0000) Schaffner FN670-1.8/07 Corcom 1VR3 Note: Reference manufacturers instructions when installing a line filter. 6. Long cable runs are more susceptible to EMI pickup than short cable runs. Therefore, keep cable runs as short as possible. 2