PowerLogix COM128 manual

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- informations concerning technical data of PowerLogix COM128
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Table of contents for the manual

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    PowerLogic ® COM128 RS-232 to RS-4 85 Converter Installation and Operation Gu ide August 2006[...]

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    Conventions Throughout  this  operation  manual,  the  following  methods  are  used  to  highlight  important  information. NOTE Describes  important  considerations  related  to  a  device  setup,  feature  or  application. CAUTION Alerts  you  to  a  condition  whic[...]

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    T able of Contents COM128 FEATURES ................................................................................................. 1 1 INTRODUCTION ........................................................................................................ 2 2 Physical Fe atures ........................................................................[...]

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    COM128 Installation and Operation Manual Schneider Electric 1 FEA TURES • Connects one RS-232 line to four RS-485 buses. • Automatic baud rate detection supporting data rates of 1200, 2400, 4800, 9600, and 19200 baud. • DTE or DCE operation allows connection to computers or modems without the need for null modem adapters. • RS-485 transmit [...]

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    COM128 Installation and Operation Manual Schneider Electric 2 1 INTRODUCTION The COM128 is used to interface a single RS-232 communica- tions line to up to four RS-485 communications buses. The RS-485 standard restricts each RS-485 bus to supporting 32 or fewer devices connected to it. The standard also dictates a 4000 foot (1219 m) maximum overall[...]

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    COM128 Installation and Operation Manual Schneider Electric 3 2 PHYSICAL FEA TURES 2.1 RS-232 PANEL The RS-232 panel of the COM128 is illustrated in Figure 2.1.1. DC SUPPLY CONNECTORS These connections allow the COM128 to be powered from a wide range of DC voltage sources, including the supplied adapter. See Chapter 4 for additional information. RS[...]

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    COM128 Installation and Operation Manual Schneider Electric 4 3 CONFIGURA TION 3.1 CONFIGURATION SWITCHES These six switches are used to configure the COM128 for the desired operation (see Figure 3.1.1). A switch is ON when it is in the UP position. The following is a description of each mode of operation. A list of switch settings for the differen[...]

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    COM128 Installation and Operation Manual Schneider Electric 5 3.2.2 SPEED COMPENSATION APPLICATION For use with DCE devices that require very accurate baud rate input. Typical uses are with high speed dial up modems. This mode can be programmed to either ignore the Carrier Detect (CD) input of its RS-232 DTE port or require that CD be asserted by t[...]

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    COM128 Installation and Operation Manual Schneider Electric 6 3.2.4 RS-485 DATA BUFFERING WITH TRANSMISSION DELAY AFTER RTS ASSERTION APPLICATION This mode is very similar to the RTS / CTS mode. The COM128 buffers data from the RS-485 ports, asserts its RTS output then transmits data out of the DTE port after a programmable time delay. This mode is[...]

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    COM128 Installation and Operation Manual Schneider Electric 7 4.2.2 DIRECT CONNECTION TO A COMPUTER PORT SELECTION An IBM-compatible PC acts as a DTE (Data Terminal Equipment) RS-232 device. Therefore, the computer’s RS-232 port should be connected to the DCE port on the COM128. Refer to Figure 4.2.2. SWITCH SETTINGS To properly communicate with [...]

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    COM128 Installation and Operation Manual Schneider Electric 8 4.2.3 CONNECTION TO A MODEM PORT SELECTION A telephone or radio modem typically acts as a DCE RS-232 device. Therefore, the modem’s RS-232 port should be connected to the COM128’s DTE RS-232 port. Refer to Figure 4.2.3. SWITCH SETTINGS To properly communicate with the modem, the COM1[...]

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    COM128 Installation and Operation Manual Schneider Electric 9 RS-485 PORT SHLD SHLD To next device To next device RS-485 Device RS-485 Cable 22 gauge shielded twisted pair Terminal Strip DISTANCE X NOTE Terminal strip connection method adds 2 times distance X to overall RS-485 cable length. 4.3 RS-485 BUS CONNECTIONS 4.3.1 CONVERTOR CONNECTIONS The[...]

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    COM128 Installation and Operation Manual Schneider Electric 10 SHLD SHLD PORT C PORT D PORT B PORT A DCE PORT DTE PORT COM128 RS-232 to RS-485 Converter RS-232 RS-485 RS-485 Cable AWG 22 shielded twisted pair. Overall length: 4000 ft. maximum. Computer or Modem SHLD SHLD SHLD RS-485 PORT RS-485 PORT SHLD SHLD RS-485 PORT SHLD SHLD PORT C PORT D POR[...]

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    COM128 Installation and Operation Manual Schneider Electric 11 CALCULATING OVERALL CABLE LENGTH When determining the overall length of an RS-485 communica- tion straight-line or loop connection, it is important to account for all cable segments. For example, when RS-485 connections to the device are made via an intermediate terminal block (Figure 4[...]

  • Page 16

    COM128 Installation and Operation Manual Schneider Electric 12 SHLD SHLD PORT C PORT D PORT B PORT A DCE PORT DTE PORT COM128 RS-232 to RS-485 Converter RS-232 RS-485 Computer or Modem SHLD PORT C PORT D PORT B PORT A DCE PORT DTE PORT COM128 RS-232 to RS-485 Converter RS-232 RS-485 Computer or Modem RS-485 ST AR CONNECTION RS-485 PORT RS-485 PORT [...]

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    COM128 Installation and Operation Manual Schneider Electric 13 6 TECHNICAL SPECIFICA TIONS ELECTRICAL RATINGS Isolation: 750 V between RS-232 and RS- 485 ports Power Supply: Standard: 9 VDC @ 500 mA (120 VAC adapter supplied) Alternate: 2-pin pluggable terminal block accepts 9-30 VDC Power to DTR Pin: 5 VDC @ 10 mA (jumper selectable) Operating Tem[...]

  • Page 18

    COM128 Installation and Operation Manual Schneider Electric 14 -IND OPTION The -IND option is a universal power supply that allows the COM128 to be powered from any standard international voltage and frequency. The power supply is designed for industrial applications where it can be mounted on the wall or door of a cabinet. Refer to Figure 7.2.1. S[...]

  • Page 19

    COM128 Installation and Operation Manual Schneider Electric 15 COM128 IND Power Supply AC (L) AC (N) FG - + (see specs for for input range) 1A Slo-Blo - + Figure 7.2 Connecting the -IND Power Supply[...]

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    COM128 Installation and Operation Manual Schneider Electric 16 Figure 7.2.1 -IND Option (Industrial P/S)[...]

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    PowerLogic COM 128 Installation and Operati on Manual For fur ther assistance please contact us at: Schneider Electric P ower Monitoring and Control 2195 Keat ing Cross Road Saanichton, BC Canada V8M 2 A5 T el: 1-25 0-652-7100 295 T ech P ark Drive, Suite 100 Lavergne , TN 37086 USA T el: 1-61 5-287-3400 Electropole (38 EQI) 31, rue Pierre Mendès [...]