Ritron DATAFLOW RTU Series Podręcznik Użytkownika Pobierz pdf (Strona 26)

DATAFLOW RTU

1. INTRODUCTION

1.1 The DATAFLOW RTU from OMEGA is a complete wireless telemetry system designed to

deliver industrial instrumentation signals from a source to other instruments via radio frequency

communications. The DATAFLOW RTU allows you to access industrial measuring devices in

remote locations without running wires, installing microwave links or leasing a telephone line.

OMEGA DATAFLOW RTU and MODBUS radio communications equipment replaces these

methods.

1.2 Manual Part B is intended to provide information needed for the programming and MODBUS

control of OMEGA DATAFLOW® RTU systems. The intended readers are people familiar with

industrial instrumentation. A basic understanding of radio communi-cations is helpful. The

included information is valid only for models listed on the cover.

OPERATION

2.1 DATAFLOW RTU is a radio telemetry system that operates on either UHF-FM (450-470 MHz

with transmitter power of 2 Watts or 5 Watts); or VHF-FM (150 - 165 MHz, 136 - 151 MHz,

160 - 174 MHz with transmitter power of 5 Watts). An RTU system operating in the UHF-FM

band at 2 Watts with directional antennas and 50-foot towers has an effective range of 20 to 25

miles over level terrain. Changes in the frequency of operation, transmitter power, terrain and

antenna structure will affect the range of the link.

2.2 All DATAFLOW RTU systems require FCC licensing.

MICROPROCESSOR UPDATES

3.1 A microprocessor, the main controlling device of a DATAFLOW RTU, is located in a socket on

the Control Board. Socket configuration provides ease in replacing or updating microprocessor

firmware.

3.2 The microprocessor firmware version available when this manual was printed is Version 3.27.

(In Version 3.x, x represents the [number] designation of a minor revision.) OMEGA Users

Guide for DATAFLOW RTU is written for all 3.2 minor designation number DATAFLOW RTU

microprocessors.

3.3 Custom software is also available. Call OMEGA for help in determining if custom software is

cost-effective for you.

PROGRAMMING KIT

4.1 A programming kit for user configuration, OMEGA part number RTU-PCPK, is available on

separate purchase. It is for connecting and providing power to the DATAFLOW RTU, and for

connecting a MODBUS PC controller to the DATAFLOW RTU.

4.2 The programming kit RTU-PCPK, consists of:

· (1) AC Power Supply, OMEGA part number RTU-PS

· (1) Computer Cable, OMEGA part number RTU-9/RTC-PAS

· (1) DATAFLOW RTU Cable, OMEGA part number RTU-PCPC

· (1) RTU Programming Software Disk, OMEGA part number RTU-PCPS-3.05

NOTE: You can download the RTU-PCPS-3.05 software from the OMEGA website at

<www.dasieee.com/>

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Ritron DATAFLOW RTU Series Podręcznik Użytkownika Strona 26