Gebruiksaanwijzing /service van het product COM128 van de fabrikant PowerLogix
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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.
T able of Contents COM128 FEATURES ................................................................................................. 1 1 INTRODUCTION .....................................................................................................
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 POR.
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 (.
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.
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.
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 .
Een belangrijk punt na aankoop van elk apparaat PowerLogix COM128 (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
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In een situatie waarin je al een beziter van PowerLogix COM128 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de PowerLogix COM128 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met PowerLogix COM128 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
