B&B Electronics RT12-4444-9T-W20 manual Modbus Functions Supported, Modbus Register Maps

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Modbus Functions Supported

01 Read Coil Status: Reads the ON/OFF status of discrete outputs (0X references, coils) in the slave. Broadcast is not supported.

02 Read Input Status: Reads the ON/OFF status of discrete inputs (1X references) in the slave. Broadcast is not supported.

03 Read Holding Registers: Reads the binary contents of holding registers (4X references) in the slave. Broadcast is not supported.

04 Read Input Registers: Reads the binary contents of input registers (3X references) in the slave. Broadcast is not supported.

05 Force Single Coil: Forces a single coil (0X reference) to either ON or OFF.

06 Preset Single Register: Presets a value into a single holding register (4X reference).

15 (0F Hex) Force Multiple Coils: Forces each coil (0X reference) in a sequence of coils to either ON or OFF.

16 (10 Hex) Preset Multiple Registers: Presets values into a sequence of holding registers (4X references).

Manual Documentation Number: RT-12 series-4006m

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B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104www.bb-elec.comB&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445www.bb-europe.com

Modbus Register Maps

 

 

RT12-4444 Modbus Map

RT12-0044 Modbus Map

Function 1

Function 1

00001

Digital Input 1

00001

Digital Input 1

00002

Digital Input 2

00002

Digital Input 2

00003

Digital Input 3

00003

Digital Input 3

00004

Digital Input 4

00004

Digital Input 4

Function 2

Function 2

10001

Digital Input 1

10001

Digital Input 1

10002

Digital Input 2

10002

Digital Input 2

10003

Digital Input 3

10003

Digital Input 3

10004

Digital Input 4

10004

Digital Input 4

Function 3 (Holding Reg)

Function 3 (Holding Reg)

40001

AO 1

40001

FQ1 (Input-1)

40002

AO 2

40002

FQ2 (Input-2)

40003 AO 3

40003 Totalize 1 Low

40004

AO 4

40004 Totalize 1 High

40005

Freq Input 1

40005

Totalize 2 Low

40006

Freq Input 2

40006

Totalize 2 High

40007

Totalize 1 Low

40007 Time To Save Counter

40008

Totalize 1 High

Function 4 (Inputs)

40009

Totalize 2 Low

40010

Totalize 2 High

30001

Main Vin 10Bit

40011

Time to Save Counter

30002

Batt Vin 10Bit

Function 4 (Inputs)

 

 

30001

AI 1 12bit

 

 

30002

AI 2 12bit

 

 

30003

AI 3 12bit

 

 

30004

AI 4 12bit

 

 

30005

Vin 10bit

 

 

6Manual Documentation Number: RT-12 series-4006m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104www.bb-elec.comB&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445www.bb-europe.com

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Contents Wireless Modbus I/O Modules Wireless I/O Modules from B&B Electronics Table of Contents Theory of Operation For Peer-to-Peer mode, check and confirm the followingFor Modbus Slave RTU mode, check and confirm the following Modbus Overview Modbus Functions Supported Modbus Register MapsRT12-4444 Modbus Map RT12-2222 Modbus Map Peer to Peer OverviewRT12-4444-9T-W20 Front Panel Identification Connection Screw Terminal DescriptionTo Connect to a Controller Link/Sanity LED Indicators Power 10.5~28 VdcData Activity LED Indicators Serial RS-232 InterfaceRT12-4444-9T-W20 External Battery Back-up RT12-2222-ZP-S12 Front Panel IdentificationConnection Screw Terminals Description RT12-2222-ZP-S12 External Battery Back-up RT12-0044-ZP-S12 Front Panel IdentificationPower 10.5~28 Vdc RT12-0044-ZP-S12 External Battery Back-up Hardware Set-upTypical Application Peer-to-Peer Typical Application Peer-to-Peer Typical Application Modbus Typical Application Well Monitor and Control Peer-to-Peer Typical Application Well Monitor and Control ModbusConfiguration Cable Description Typical Application 4-20 mA to Voltage ConversionPin# Connection color Configuration/Monitoring Software System Map Configuration/Monitoring Software MainController Configuration Current Controller SettingsManual Documentation Number RT-12 series-4006m Connecting / Disconnecting Master, Slave, Modbus, Peer-to-PeerModbus Configuration Digital Input TypesRTU Alarms Input Voltage Alarm Limits Analog Outputs Resting VoltageManual Documentation Number RT-12 series-4006m Updating/Sending Configuration to RTU Third Party Communications Protocol SupportStatus Bar Digital Outputs