Hamilton Electronics EPHUM011 Configuration of the Analog Interfaces, Available Analog Interfaces

Page 9

pH ARC Sensors Modbus RTU Programmer’s Manual (EPHUM011)

2.4Configuration of the Analog Interfaces

2.4.1 Available Analog Interfaces

A pH ARC Sensor has two individual physical analog interfaces that have identical functionalities, but can be configured independently from each other.

Analog Output Interface 1 (AO1)

Analog Output Interface 2 (AO2)

The number of analog interfaces is defined in register 4320.

Start

Number of

Reg1 / Reg2

Modbus

Read

Write

register

registers

 

function code

access

access

4320

2

Available analog interfaces

3, 4

U/A/S

none

Figure 2.4.1.1: Definition of register 4320.

Command: Avail analog interfaces

Modbus address: 4320

Length: 2

Type: 3

Read

Parameter:

Available analog

 

 

 

 

 

 

 

interfaces

 

 

 

 

 

 

Format:

Hex

 

 

 

 

 

 

Value:

0x03

 

 

 

 

 

 

Figure 2.4.1.2: Example to read the available analog interfaces. The answer is “0x03”meaning that there exists an Analog Interface 1 (AO1) and an Analog Interface 2 (AO2).

2.4.2 Available Analog Interface Modes

With register 4322, the available analog interface modes for AO1 and AO2 are defined

Start

 

Number of

 

Reg1 /

 

Reg3 /

Reg5 /

Reg7 /

 

Modbus

Read

 

Write

register

 

registers

 

Reg2

 

Reg4

Reg6

Reg8

 

function

access

 

access

 

 

 

 

 

 

 

 

 

 

 

code

 

 

 

4322

8

 

Available

 

Available

reserved

reserved

 

3,4

U/A/S

 

none

 

 

 

 

Analog

 

Analog

 

 

 

 

 

 

 

 

 

 

 

Interface

 

Interface

 

 

 

 

 

 

 

 

 

 

 

Modes for

Modes

 

 

 

 

 

 

 

 

 

 

 

AO1

 

for AO2

 

 

 

 

 

 

 

Figure 2.4.2.1: Definition of register 4322. It defines the analog interface modes available for AO1 and

AO2. The analog interface modes are described in Figure 2.4.2.2.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Code

 

Analog Interface

 

Description

 

 

 

 

 

 

 

(Hex)

 

Mode

 

 

 

 

 

 

 

 

 

 

 

0x00

 

4-20 mA inactive

 

Analog interface deactivated

 

 

 

 

 

 

0x01

 

4-20 mA fixed

 

 

Set to a constant output value for current loop testing

 

 

 

0x02

 

4-20 mA linear

 

Linear output of measurement (PMC1 / 6)

 

 

 

 

0x04

 

4-20 mA bilinear

 

Bilinear output of measurement (PMC1 / 6)

 

 

 

 

Figure 2.4.2.2: Definition of the analog interface modes, valid for both AO1 and AO2.

Command: Analog Interface Modes

Modbus address: 4322

Length: 8

Type: 3

Read

Parameter:

Available Analog

Available Analog

reserved

 

reserved

 

 

Interface Modes for

Interface Modes for

 

 

 

 

 

AO1

AO2

 

 

 

 

Format:

Hex

Hex

Hex

 

Hex

 

Value:

0x07

0x07

0x0

 

0x0

 

Figure 2.4.2.3: Example to read register 4322: all modes defined in figure 2.4.2.2 are available for both AO1 and AO2.

624300/01

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Contents PH ARC Sensors Important Notice Configuration of the Analog Interfaces Configuration of the Serial RS485 InterfaceConfiguration of the Measurement Sensor Identification and InformationIntroduction Visiferm do Modbus RTU Programmer’s Manualp/n 624179/01EPHUM011 Reading / Setting Operator Level Operator levels and PasswordsGeneral 0x030x30 Changing Passwords for Operator Level0x0C 18111978 0x0B 18111978Device Address Configuration of the serial RS485 InterfaceReading and Writing the Device Address Reading the Device Address LimitsBaud Rate Reading and Writing the Baud RateReading the Baud Rate Limits Available Analog Interfaces Configuration of the Analog InterfacesAvailable Analog Interface Modes 0x07Description of the Analog Interfaces 1 Selection of an Analog Interface ModeMA interface #1 MA interface #2Configuration of the 4-20 mA Interface 0x210x01 PH ARC Sensors Modbus RTU Programmer’s Manual EPHUM011 Reading the Selected Physical Unit for Analog Interface 0x001000Defining the Measurement Values for 4, 12 and 20 mA Output PH ARC sensor 4-20mA inte rface linear Defining a Constant Current Output for Testing 0x010001 99186 99742 Reading the Internally Measured Output CurrentDefinition of Measurement Channels and Physical Units MeasurementSpecial Description of PMC1 Primary Measurement Channel 1 pHSelecting the Physical Unit for PMC1 0x201000Reading the measurement value of PMC1 0x1000 02503 0x000x200000 175.9922 0x00 954.6541 Description of PMC6 Primary Measurement Channel 6 TemperatureSelecting the Physical Unit for PMC6 0x06Definition of the Measurement Status for PMC1 / PMC6 Input of an Externally Measured TemperatureReading the measurement value of PMC6 0x04 24.35834 0x00 130Description of SMC Secondary Measurement Channels0x8000 247.56 Reading the measurement value of SMCAvailable Parameters Configuration of the MeasurementEffect of Moving Average n=1 vs n=16 2 PA9 Moving AverageSelecting the Physical Unit and Writing the Value for PA9 Description of PA9 Moving AverageReading all Values for PA9 3 PA12 Moving Average R Description of PA12 Moving Average RSelecting the Physical Unit and Writing the Value for PA12 Reading all Values for PA12 Available Calibration Points CalibrationCalibration Points 1 and 2 Standard Calibration Definitions of Calibration PointsCP1 CP2CP6 Calibration Point 6 Product CalibrationCalibration at CP1 and CP2 Standard Calibration Calibration ProcedurePH ARC Sensors Modbus RTU Programmer’s Manual EPHUM011 Choose one of the calibration points CP1 or CP2 0x00000000 0x00001000 Calibration at CP6 Product Calibration 100200 Product calibration Initial measurement Definition of the commands for product calibrationProduct calibration Assignment Product calibration CancelProduct calibration Restore product calibration Product calibration Restore standard calibrationReading the Calibration Status of CP1 and CP2 Reading the Calibration Status0x00000080 0x00001000 0x00000180 0x00001000Reading the Calibration Status of CP6 Product Calibration 0x08000000 0x00001000 0x01000000 0x000010000x0A000000 0x00001000 0x14000000 0x000010000x10000000 0x00001000 0x00000004 24.35184 23.78 Currently active Calibration Parameters part0x00000004 24.37691 16.45 0x00000004 29.93368 379.5167006804 099747 296.6901 003401 179.927 297.137810469 298.3302 607782 59.47631 298.15Special Commands for Calibration with Visical Available Sets of Calibration Standards Calibration StandardsLSB 0x00000001 Set 0x0000003F180 Definitions for Individual Sets of Calibration Standards0x0FFF0FFF 0x05540FFF 0x02480FFFNist Standard DINMettler Toledo Radiometer Sensor Status Temperature Ranges168.3667 Operating Hours and CountersCurrently Active Warnings History of WarningsDefinition of Warnings Errors Currently Active ErrorsHistory of Errors Definition of Errors Reading Definition of SIP and CIP SIPCIP 120 130 Reading the Sensor’s Quality IndicatorGeneral Information Sensor Identification and InformationSensor Identification EPHFI010Free User Memory Space 0001001Freeuserspace Recall Sensor’s Factory Settings System CommandsHello World 732255PH ARC Sensors Modbus RTU Programmer’s Manual EPHUM011