pH ARC Sensors Modbus RTU Programmer’s Manual (EPHUM011)
2.8.2 Operating Hours and Counters
In register 4676 are given:
total operating hours
operating hours above max measurement temperature (see chapter 2.8.1)
the operating hours above max operating temperature (see chapter 2.8.1)
In register 4682 are stored:
number of power ups
number of watchdog resets
number of writing cycles to the sensor’s flash memory
In register 4688 are given:
number of sterilizations in place (SIP) (see chapter 2.8.5)
number of cleanings in place (CIP) (see chapter 2.8.5)
Start | Number of | Reg1 / Reg2 | Reg3 / Reg4 | Reg3 / Reg4 | Modbus | Read | Write |
register | registers |
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|
| function code | access | access |
4676 | 6 | Operating | Operating | Operating | 3, 4 | U/A/S | none |
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| hours | hours above | hours above |
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| [h] | max | max |
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| measurement | operating |
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| temperature | temperature |
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| [h] | [h] |
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4682 | 6 | Number of | Number of | Number of | 3, 4 | U/A/S | none |
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| Power ups | Watchdog | Writing |
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| resets | cycles to |
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| flash memory |
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4688 | 4 | Number of | Number of | - | 3, 4 | U/A/S | none |
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| SIP cycles | CIP cycles |
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Figure 2.8.2.1: Definition of register 4676, 4682 and 4688.
Command: Operating hours |
| Modbus address: 4676 | Length: 6 | Type: 3 | Read | ||
Parameter: | Operating hours [h] |
| Operating hours | Operating hours |
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| |
|
| above max | above max |
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| ||
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| measurement | operating |
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| ||
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| temperature | temperature |
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| ||
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| [h] | [h] |
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| |
Format: | Float | Float | Float |
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| |
Value: | 168.3667 | 0 |
| 0 |
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Figure 2.8.2.2: Example to read the total operating hours, the operating hours above the max measurement temperature and the operating hours above the max operating temperature.
Command: Power & watchdog |
| Modbus address: 4682 |
| Length: 6 | Type: 3 | Read | ||
Parameter: | Number of Power | Number of | Number | of Writing |
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| ||
| ups | Watchdog resets | cycles to flash |
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| |||
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| memory |
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| |
Format: | Decimal | Decimal | Decimal |
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| ||
Value: | 34 | 1 |
| 16 |
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Figure 2.8.2.3: Example to read the number of power ups, the number of watchdog resets and the number of writing cycles to flash memory.
Command: SIP & CIP |
| Modbus address: 4688 | Length: 4 | Type: 3 | Read | ||
Parameter: | SIP cycles | CIP cycles |
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Format: | Decimal | Decimal |
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Value: | 0 | 0 |
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Figure 2.8.2.4: Example to read the number of SIP cycles and the number of CIP cycles. For the definition of SIP and CIP cycles see chapter 2.8.5.
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