pH ARC Sensors Modbus RTU Programmer’s Manual (EPHUM011)
Table of Content
1 MODBUS RTU GENERAL INFORMATION | 4 | ||
1.1 | INTRODUCTION | 4 | |
2 PH ARC SENSOR COMMANDS IN MODBUS RTU | 5 | ||
2.1 | GENERAL | 5 | |
2.2 | OPERATOR LEVELS AND PASSWORDS | 5 | |
2.2.1 | Reading / Setting Operator Level | 5 | |
2.2.2 | Changing Passwords for Operator Level | 6 | |
2.3 | CONFIGURATION OF THE SERIAL RS485 INTERFACE | 7 | |
2.3.1 | Device Address | 7 | |
2.3.2 | Baud Rate | 8 | |
2.4 | CONFIGURATION OF THE ANALOG INTERFACES | 9 | |
2.4.1 | Available Analog Interfaces | 9 | |
2.4.2 | Available Analog Interface Modes | 9 | |
2.4.3 | Description of the Analog Interfaces 1 and 2 | 10 | |
2.4.4 | Selection of an Analog Interface Mode | 10 | |
2.4.5 | Configuration of the | 11 | |
2.4.6 | Reading the Internally Measured Output Current | 17 | |
2.5 | MEASUREMENT | 18 | |
2.5.1 | Definition of Measurement Channels and Physical Units | 18 | |
2.5.2 | Primary Measurement Channel 1 (pH) | 20 | |
2.5.3 | Primary Measurement Channel 6 (Temperature) | 22 | |
2.5.4 | Definition of the Measurement Status for PMC1 / PMC6 | 23 | |
2.5.5 | Secondary Measurement Channels | 24 | |
2.6 | CONFIGURATION OF THE MEASUREMENT | 26 | |
2.6.1 | Available Parameters | 26 | |
2.6.2 | PA9: Moving Average | 27 | |
2.6.3 | PA12: Moving Average R | 30 | |
2.7 | CALIBRATION | 32 | |
2.7.1 | Available Calibration Points | 32 | |
2.7.2 | Definitions of Calibration Points | 33 | |
2.7.3 | Calibration Procedure | 35 | |
2.7.4 | Reading the Calibration Status | 44 | |
2.7.5 | Currently active Calibration Parameters part 1 | 48 | |
2.7.6 | Currently active Calibration Parameters part 2 | 48 | |
2.7.7 | Currently active Calibration Parameters part 3 | 49 | |
2.7.8 | Currently active Calibration Parameters part 4 | 49 | |
2.7.9 | Special Commands for Calibration with VISICAL | 50 | |
2.7.10 | Calibration Standards | 51 | |
2.8 | SENSOR STATUS | 57 | |
2.8.1 | Temperature Ranges | 57 | |
2.8.2 | Operating Hours and Counters | 58 | |
2.8.3 | Warnings | 59 | |
2.8.4 | Errors | 60 | |
2.8.5 | Reading Definition of SIP and CIP | 62 | |
2.8.6 | Reading the Sensor’s Quality Indicator | 63 | |
2.9 | SENSOR IDENTIFICATION AND INFORMATION | 64 | |
2.9.1 | General Information | 64 | |
2.9.2 | Sensor Identification | 64 | |
2.9.3 | Free User Memory Space | 65 | |
2.10 | SYSTEM COMMANDS | 66 | |
2.10.1 | Recall Sensor’s Factory Settings | 66 | |
3 ABBREVIATIONS | 66 |
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