Onicon System-10 MODBUS Manuel d'utilisateur télécharger pdf (Page 5)

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System-10-MOD Network Interface Installation Guide 05/14 - 0653-10 / 18321 Page 5

SECTION 1: INTRODUCTION

1.1 PURPOSE OF THIS GUIDE

The purpose of this guide is to provide installation procedures and basic operating and servicing

instructions for the ONICON System-10 MODBUS RTU serial interface.

1.2 TYPICAL SYSTEM-10 BTU METER

ONICON’S System-10 is a true heat (Btu) computer, which accepts data from several sensors,

performs a series of computations with that data, and displays and/or transmits the results as an

indication of the amount of heat (Btu’s) being transferred per unit time or as a totalized amount.

1.3 SPECIFICATIONS

MODBUS RTU NETWORK INTERFACE

RS485

Transceiver: 2-wire, half-duplex

Data format: 8 bit with 1 stop bit

Parity: None

MAC address (device address) range: 1 - 247 (Default: 017)

Baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600 or 115200 (Default: 9600)

Termination: 120 ohms or none (Default: none)

Biasing: None

Flow control: None

TCP/IP

Transceiver: 10Base T, 10Mbps, Rj45 connection

Data format: 8 bit with 1 stop bit

Parity: None

MAC address (device address) range: 1 - 247 (Default: 017)

Default IP address: 192.168.1.24 (Port 502)

Flow control: None

Heat Exchanger

SCRO LL RESET PROG RAM

BTU X 10,000

ONICON insertion

flow meter (purchased

separatelly)

24 VAC input

MODBUS RTU

Communications to

Network

Supply Temp

Sensor

Return Temp

Sensor

Supply

Return

SYSTEM-10

BTU METER

1 2 3 4 5 6 7 8 9 10 ... 34 35

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Onicon System-10 MODBUS Manuel d'utilisateur Page 5

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