Special | Hamilton Electronics EPHUM011 guide

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

The pH ARC Sensor register structure uses the following physical units used for Primary or Secondary Measurement Channels.

Bit #	Hex code	Physical unit	Start register. (8 ASCII characters, length 4 registers,
			Type 3, read for U/A/S)
0 (LSB)	0x00000001	none	1920
1	0x00000002	K	1924
2	0x00000004	°C	1928
3	0x00000008	°F	1932
4	0x00000010	%-vol	1936
5	0x00000020	%-sat	1940
6	0x00000040	ug/l ppb	1944
7	0x00000080	mg/l ppm	1948
8	0x00000100	g/l	1952
9	0x00000200	uS/cm	1956
10	0x00000400	mS/cm	1960
11	0x00000800	1/cm	1964
12	0x00001000	pH	1968
13	0x00002000	mV/pH	1972
14	0x00004000	kOhm	1976
15	0x00008000	MOhm	1980
16	0x00010000	pA	1984
17	0x00020000	nA	1988
18	0x00040000	uA	1992
19	0x00080000	mA	1996
20	0x00100000	uV	2000
21	0x00200000	mV	2004
22	0x00400000	V	2008
23	0x00800000	mbar	2012
24	0x01000000	Pa	2016
25	0x02000000	Ohm	2020
26	0x04000000	%/°C	2024
27	0x08000000	°	2028
28	0x10000000	not used	2032
29	0x20000000	not used	2036
30	0x40000000	not used	2040
31 (MSB)	0x80000000	SPECIAL	2044

Figure 2.5.1.4: Definition of physical units used for PMC and SMC.

Command: Unit text		Modbus address: 1968	Length: 4	Type: 3	Read
Parameter:	Text
Format:	Character
Value:	pH

Figure 2.5.1.5: Example to read the physical unit in plain text ASCII in register 1968

624300/01

page 19 / 67

Image 19

Hamilton Electronics EPHUM011 manual Special

Contents

PH ARC Sensors Important Notice Sensor Identification and Information Configuration of the Serial RS485 InterfaceConfiguration of the Analog Interfaces Configuration of the Measurement Visiferm do Modbus RTU Programmer’s Manualp/n 624179/01 IntroductionEPHUM011 0x03 Operator levels and PasswordsReading / Setting Operator Level General 0x0B 18111978 Changing Passwords for Operator Level0x30 0x0C 18111978 Reading the Device Address Limits Configuration of the serial RS485 InterfaceDevice Address Reading and Writing the Device Address Reading and Writing the Baud Rate Baud RateReading the Baud Rate Limits 0x07 Configuration of the Analog InterfacesAvailable Analog Interfaces Available Analog Interface Modes MA interface #2 Selection of an Analog Interface ModeDescription of the Analog Interfaces 1 MA interface #1 0x21 Configuration of the 4-20 mA Interface0x01 PH ARC Sensors Modbus RTU Programmer’s Manual EPHUM011 0x001000 Reading the Selected Physical Unit for Analog InterfaceDefining 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 Current Definition of Measurement Channels and Physical Units Measurement Special 0x201000 Primary Measurement Channel 1 pHDescription of PMC1 Selecting the Physical Unit for PMC1 0x1000 02503 0x00 Reading the measurement value of PMC10x200000 175.9922 0x00 954.6541 0x06 Primary Measurement Channel 6 TemperatureDescription of PMC6 Selecting the Physical Unit for PMC6 0x04 24.35834 0x00 130 Input of an Externally Measured TemperatureDefinition of the Measurement Status for PMC1 / PMC6 Reading the measurement value of PMC6 Description of SMC Secondary Measurement Channels 0x8000 247.56 Reading the measurement value of SMC Available Parameters Configuration of the Measurement Effect of Moving Average n=1 vs n=16 2 PA9 Moving Average Selecting the Physical Unit and Writing the Value for PA9 Description of PA9 Moving Average Reading all Values for PA9 Description of PA12 Moving Average R 3 PA12 Moving Average RSelecting the Physical Unit and Writing the Value for PA12 Reading all Values for PA12 Available Calibration Points Calibration CP2 Definitions of Calibration PointsCalibration Points 1 and 2 Standard Calibration CP1 CP6 Calibration Point 6 Product Calibration Calibration at CP1 and CP2 Standard Calibration Calibration Procedure PH ARC Sensors Modbus RTU Programmer’s Manual EPHUM011 Choose one of the calibration points CP1 or CP2 0x00000000 0x00001000 Calibration at CP6 Product Calibration 100 200 Product calibration Initial measurement Definition of the commands for product calibration Product calibration Assignment Product calibration Cancel Product calibration Restore product calibration Product calibration Restore standard calibration Reading the Calibration Status of CP1 and CP2 Reading the Calibration Status 0x00000180 0x00001000 0x00000080 0x00001000Reading the Calibration Status of CP6 Product Calibration 0x14000000 0x00001000 0x01000000 0x000010000x08000000 0x00001000 0x0A000000 0x00001000 0x10000000 0x00001000 0x00000004 29.93368 379.5167 Currently active Calibration Parameters part0x00000004 24.35184 23.78 0x00000004 24.37691 16.45 607782 59.47631 298.15 003401 179.927 297.1378006804 099747 296.6901 10469 298.3302 Special Commands for Calibration with Visical 0x0000003F Calibration StandardsAvailable Sets of Calibration Standards LSB 0x00000001 Set 180 Definitions for Individual Sets of Calibration Standards 0x0FFF0FFF 0x05540FFF 0x02480FFF Nist Standard DIN Mettler Toledo Radiometer Sensor Status Temperature Ranges 168.3667 Operating Hours and Counters History of Warnings Currently Active WarningsDefinition of Warnings Currently Active Errors ErrorsHistory of Errors Definition of Errors SIP Reading Definition of SIP and CIPCIP 120 130 Reading the Sensor’s Quality Indicator EPHFI010 Sensor Identification and InformationGeneral Information Sensor Identification 0001001 Free User Memory SpaceFreeuserspace 732255 System CommandsRecall Sensor’s Factory Settings Hello World PH ARC Sensors Modbus RTU Programmer’s Manual EPHUM011