Badger-meter M-Series M2000 User Manual download pdf

IOM-193-02-EN (December 2012)

53400-193 Rev. 2

M-Series® M2000

MODBUS RTU Communication Daughterboard

Installation Manual

OVERVIEW

The MODBUS RTU Communication daughterboard expands the

connectivity of the M-Series M2000 flow meter by facilitating

communication over RS485 using the MODBUS RTU protocol. The

RS485 allows for greater communication distances than RS232 and

provides for multi-point networking.

39 38 37 36 35 34

11 Pin Plug (Connect to “COMMUNICATION” plug on Amplifier Board)

33 32 31

120 Ω

Termination Jumper

120 Ω

No Termination

RS485 / RS232

Mode Selection Jumper

RS485

RS232

External Connections (Pins 31 – 39)

Pin No. Pin Name Description

31 Analog Output

0…20 mA, 0…10 mA, 2…10 mA,

4…20 mA

32 COM Common ground connection

33 RS232 RX Receive input for RS232

34 RS232 TX Transient output for RS232

35 COM Common ground connection

36 RS485 ( – ) Inverting signal for RS485

37 RS485 ( + ) Non inverting signal for RS485

RS232/485

Shield

Shield input for RS232 or RS485

39 Chassi

Connection for coupling shield to

chassi

INSTALLING THE DAUGHTERBOARD

1. Use the provided self-adhesive tape to secure the foam pad

near the 11-pin COMMUNICATION connector.

2. Remove the board support screw near the 11-pin

COMMUNICATION connector to install the green chassis

connection wire (with an eye washer). Connect the other end of

the chassis connection wire to pin 39.

3. Select operation mode RS485 or RS232 for the daughterboard

using J4.

4. For RS485 mode only: Select the termination (that is, 120 Ω or

No termination) using J3.

NOTE: 120 Ω termination is typically required when the meter is

the first or last device in the communication link.

NOTE: It is assumed all signal biasing is accomplished at the

MODBUS RTU master node. For biasing calculations,

receiver input impedance is 96 k Ω or 1/8 unit loads.

DISCONNECT THE INPUT POWER BEFORE ACCESSING

THE EQUIPMENT.

5. Turn o the meter and insert the daughterboard into the keyed

11-pin COMMUNICATION connector on the amplier.

CONFIGURING THE PORT B MODBUS RTU

The MODBUS RTU Communication Daughterboard is a slave device

that communicates over Port B. The following Port B settings are

configurable from the meter’s menu manager.

Setting Options

Port address 1 to 247

Ext. port address

Not applicable for MODBUS RTU

daughterboard

Baud rate 9600 (default), 19200, 38400

Data bits 5, 7, 8 (default)

Parity None, Even (default), Odd

Stop bits 1 (default), 2

To change the configuration of Port B to match your system

requirements:

1. Turn on the meter.

2. Navigate to Main Menu > Communication > Port B Settings.

3. Verify that the settings are an appropriate match for the

application. If not, change the settings as necessary.

Please refer to M2000 MODBUS Memory Map Application Brief for

accessible registers.

1 2

Installation Manual 1

Summary of Contents

Page 1 - Installation Manual

IOM-193-02-EN (December 2012)53400-193 Rev. 2M-Series® M2000MODBUS RTU Communication DaughterboardInstallation ManualOVERVIEWThe MODBUS RTU Communicat

Page 2

www.badgermeter.comM-Series is a registered trademark of Badger Meter, Inc. Other trademarks appearing in this document are the property of their res

Badger-meter M-Series M2000 User Manual

Browse online or download User Manual for Accessories for water Badger-meter M-Series M2000. Badger Meter M-Series M2000 User Manual

Summary of Contents

More documents for Accessories for water Badger Meter M-Series M2000

Comments to this Manuals

Badger-meter M-Series M2000 User Manual

Browse online or download User Manual for Accessories for water Badger-meter M-Series M2000. Badger Meter M-Series M2000 User Manual

Summary of Contents

More documents for Accessories for water Badger Meter M-Series M2000

Comments to this Manuals

Related products and manuals for Accessories for water Badger-meter M-Series M2000