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ProSoft Technology MVI56-AFC User Manual

Page 73

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MVI56-AFC ♦ ControlLogix Platform

Modbus Database

Liquid and Gas Flow Computer

User Manual

ProSoft Technology, Inc.

Page 73 of 316

February 25, 2011

Example: Find the orifice diameter address for the first 5 meter channels.
The meter 1 orifice diameter registers are located at the holding register address

8162 and 8163 as follows:

8160

8161

Float

Parameter: orifice plate: measurement temperature

8162

8163

Float

Parameter: orifice plate: measured diameter

8164

8165

Float

Parameter: orifice plate: coef of thermal expansion

8166

8167

Float

Parameter: meter tube: measurement temperature

8168

8169

Float

Parameter: meter tube: measured diameter

8170

8171

Float

Parameter: meter tube: coef of thermal expansion

8172

8173

Float

Parameter: differential pressure flow threshold


The meter-relative addresses are Mh00162 and Mh00163
The addresses for meters 1 to 5 are listed on the following table.

Meter

Registers

1

8162 and 8163

2

10162 and 10163

3

12162 and 12163

4

14162 and 14163

5

16162 and 16163

5.2.4 Scratchpad

The Primary Modbus Slave contains a scratchpad area that can be used to store

any data required by each application. This area is "empty" by default and

contains 6000 words of data starting at holding register 2000 in the Primary

Modbus Slave.

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