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 |
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| code |
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4800 | 8 | Active error | Active error | Active error | Active error | 3, 4 | U/A/S | none |
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| measure- | calibration | interface | hardware |
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| ment | (bitwise | (bitwise | (bitwise |
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| (bitwise | defined) | defined) | defined) |
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| defined) |
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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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