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

2.8.4 Errors

An “Error”message indicates a serious problem of the sensor which does not allow further proper functioning of the sensor. This problem must be solved.

2.8.4.1Currently Active Errors

The currently active errors are stored in register 4800.

Start

Number

Reg1 /

Reg3 /

Reg5 /

Reg7 /

Modbus

Read

Write

register

of

Reg2

Reg4

Reg6

Reg8

function

access

access

 

registers

 

 

 

 

code

 

 

4800

8

Active error

Active error

Active error

Active error

3, 4

U/A/S

none

 

 

measure-

calibration

interface

hardware

 

 

 

 

 

ment

(bitwise

(bitwise

(bitwise

 

 

 

 

 

(bitwise

defined)

defined)

defined)

 

 

 

 

 

defined)

 

 

 

 

 

 

Figure 2.8.4.1.1: Definition of register 4800 (see chapter 2.8.4.3)

Command: Active errors

 

Modbus address: 4800

Length: 8

Type: 3

Read

Parameter:

E Measurement

E

Calibration

E Interface

E Hardware

 

Format:

Hex

Hex

Hex

 

Hex

 

Value:

0x00

0x00

0x00

 

0x00

 

Figure 2.8.4.1.2: Example to read the currently active errors.

2.8.4.2History of Errors

The history of errors is not implemented in pH ARC Sensors.

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Hamilton Electronics EPHUM011 manual Currently Active Errors, History of Errors