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Doc# 1870872

 • REV A

 (January 2018) Page 

7 of 7

 

2.9 Create a chain of requests to scan all the registers you want to poll from DA

-

TAWATCH.

2.10 Create register chain in your PLC configuration software and start to monitor or 

control the parameters in your application.

The most common registers if 8 channels are used, please consult Metrix customer service for any ques

-

tion.

Parameter

Description

Type

Address 

(Hex)

Address 

(Decimal)

Channel.1.Main.Measured Value

Measured value

float32

0X1814

6164

Channel.1.Main.PV

The process variable (output) of the channel

float32

0X0100

256

Channel.1.Main.PV2

The secondary input process variable (ouput)  of 

the channel

float32

0X0110

272

Channel.2.Main.Measured Value

Measured value

float32

0X1894

6292

Channel.2.Main.PV

The process variable (output) of the channel

float32

0X0104

260

Channel.2.Main.PV2

The secondary input process variable (ouput)  of 

the channel

float32

0X0114

276

Channel.3.Main.Measured Value

Measured value

float32

0X1914

6420

Channel.3.Main.PV

The process variable (output) of the channel

float32

0X0108

264

Channel.3.Main.PV2

The secondary input process variable (ouput)  of 

the channel

float32

0X0118

280

Channel.4.Main.Measured Value

Measured value

float32

0X1994

6548

Channel.4.Main.PV

The process variable (output) of the channel

float32

0X010c

268

Channel.4.Main.PV2

The secondary input process variable (ouput)  of 

the channel

float32

0X011c

284

VirtualChannel.1.Main.ModbusInput

Modbus input value

float32

0X1c06

7174

VirtualChannel.2.Main.ModbusInput

Modbus input value

float32

0X1c86

7302

VirtualChannel.3.Main.ModbusInput

Modbus input value

float32

0X1d06

7430

VirtualChannel.4.Main.ModbusInput

Modbus input value

float32

0X1d86

7558

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Содержание DATAWATCH IX Modbus

Страница 1: ...DATAWATCH IX Modbus User Manual Doc 1870872 REV A January 2019 This manual provides the procedure and instruction to remotely access Metrix DATAWATCH through Modbus over TCP IP ...

Страница 2: ...Doc 1870872 REV A January 2018 Page 2 of 7 Setup DATAWATCH 1 1 Log on the DATAWATCH with Engineer access level type password 100 1 2 Go to Network Modbus menu ...

Страница 3: ...ge 3 of 7 1 3 Make sure Address is 1 Unit ID Enable is Loose and Serial Mode is Modbus Slave Change to these settings if they aren t 1 4 Write down the IP Address of DATAWATCH from Network Interface menu for later use by Modbus server ...

Страница 4: ...the registers so that you can read them in the proper decimal numbers you want 2 Test Modbus communication from Modbus scanner software 2 1 Install the Modbus scanner software in your computer and run it 2 2 Add TCP connection using the DATAWATCH IP address and Port number ...

Страница 5: ...e ID that matches DATAWATCH setting 2 4 Add request to the DATAWATCH Modbus slave The function can be either Hold ing resisters or Input registers The Offset is the register address that can be found from DATAWATCH Modbus map The Length is how many bytes the register contains ...

Страница 6: ...ss 264 the unpro cessed reading is 501785684 but the actual value should be a float number 5 01785684 To get this processed float type of value you need calculate the native address by using the formula integer address x 2 0x8000 This is specified in the Modbus map manual 2 8 If you use the actual address in the Modbus scanner software you will get the actual value of the true type Channel 3 Main ...

Страница 7: ... The secondary input process variable ouput of the channel float32 0X0114 276 Channel 3 Main Measured Value Measured value float32 0X1914 6420 Channel 3 Main PV The process variable output of the channel float32 0X0108 264 Channel 3 Main PV2 The secondary input process variable ouput of the channel float32 0X0118 280 Channel 4 Main Measured Value Measured value float32 0X1994 6548 Channel 4 Main P...

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