Modbus Interface; Modbus Function Code Support; Modbus Register Map - Badger Meter FC-5000 User Manual

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MODBUS INTEOFACE

Modbus Function Code Support

The FC-5000 Flow Computer supports access through all four of the Modbus data

types� Both single and multiple write-access commands are supported for register

and coil data types� For multiple register writes, the command must initiate on

a valid parameter address and end on last register of a valid parameter address�

Multiple register writes that start in the middle of a multiple register parameter or

do not end on the last register of a multiple register parameter are not supported�

The table below lists the supported function codes�

Description

Read Coils

Read Discrete Inputs

Read Holding Registers

Read Input Registers

Write Single Coil

Write Single Register

Diagnostic – Return Query Data

Write Multiple Coils

Write Multiple Registers

Report Slave ID

Modbus Oegister Map

Oegister Name

Flow Rate 1

Flow Total 1

Flow Total Precision 1

Flow Rate 2

Flow Total 2

Flow Total Precision 2

Flow Rate Quad

Flow Total Quad

Flow Total Precision Quad

April 2019

Table 36: Supported modbus function codes

Oegister

Address

0x0000

0x0002

0x0004

0x0008

0x000A

0x000C

0x0010

0x0012

0x0014

Table 37: Modbus register map

CTL-UM-01723-EN-03

Function Code

Coil

Data Type

Addr.

—

Float

—

Float

—

Double

—

Float

—

Float

—

Double

—

Float

—

Float

—

Double