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Technical Reference Modbus Translator Module

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Technical Reference Modbus Translator Module ( technical-reference-modbus-translator-module )

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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Technical Reference: ModBus Translator Module Hardware Interface Power Requirements • Connector – Terminal block with +PWR, -PWR and GND • Voltage – Nominal 13.8 VDC (+6 TO +24V) • Amps – 300 mA continuous, 500mA peak @nominal voltage RS232 Connector The connector between the Modbus Translator and the MicroTurbine system is a standard 9- pin straight-through serial cable. • Connector - DB 9-pin (female) following DCE standard (see diagram below) • Communication - 57,600 bps, 8 Data, 1 Stop, No Parity, Half Duplex • Distance – less than 50 feet (in relatively noise-free environment) Pin# Description 1 DCD – Data Carrier Detect (output) 2 TXD – Transmit Data (output) 3 RXD – Receive Data (input) 4 DSR – Data Set Ready (input) 5 Signal Ground 6 DTR – Data Terminal Ready (output) 7 CTS – Clear To Send (input) 8 RTS – Request To Send (output) 9 RI – Ring Indicator (not used) RS-485 Connector Pin-5 Pin-9 Pin-1 Pin-6 • Connector - Terminal with Comm A, Comm B, Shield, and GND • Communication - RTU Mode, 8 Data, 1 Stop, Even Parity, Half Duplex (Unless otherwise noted) • Baud Rate - Selectable • Distance - less than 4000 feet 1 RS-485 Termination 2 RS-485 Bus “B” Lead 3 RS-485 Bus “A” Lead 4 Positive Power Input (+6V to +24V DC) 5 Ground 410040-001 Rev A (February 2003) 12345 Page 2 of 35 Pin# Description This information is proprietary to Capstone Turbine Corporation. Neither this document nor the information contained herein shall be copied, disclosed to others, or used for any purposes other than the specific purpose for which this document was delivered. Capstone reserves the right to change or modify without notice, the design, the product specifications, and/or the contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction. Female

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