ProSoft Technology PTQ-AFC - Manual (Page 81)

PTQ-AFC ♦ Modicon Quantum Platform Quick Start
Liquid and Gas Flow Computer for Hydrocarbon Products User Manual
ProSoft Technology, Inc. Page 81 of 259
June 23, 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
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.