Beijer-electronics SCOM Protocol EN Manual de usuario descargar pdf (Pagina 122)

Command Reference

122 Beijer Electronics, MAEN975

6.73 LAU_STATUS_CFGWRITECOUNTER

(0x030E)

Configuration Write Counter

Beijer Electronics Nautic Monitors store their configuration data in a non-volatile

memory called EEPROM (Electrically Erasable Read Only Memory). An EEPROM

has limited count of write/erase cycles (at least 100,000). This command returns the

amount of configuration writes, which may help to replace a device in time, if nec-

essary. As an example, if the device is configured 30 times each day (automatic and

manual configuration), the EEPROM is still capable to store new data for more than

9 years of continuous operation (100,000 / 30 ≈ 3,333 days, 3,333 / 365 ≈ 9,1 years).

Supported since Firmware Version

MT230 Nautic Monitor: 1.2-C118

Command Stream

Response Message (Acknowledge)

Response Message (Negative Acknowledge)

Under normal operation conditions, a device never sends a negative acknowledge in

response to this command.

Maximum Lr for this Command

Note:

Besides manual configuration, the device updates configuration data automatically

while in continuous operation, to store the operation hours (see command “ETC”) or

last backlight level value.

0 1 2 3 4 5 6 7...8 9

0x07 ADR

0x4C 0x41 0x55 0x02 ICHKH 0x03 0x0E ICHKD

0 1 2 3 4 5 6 7...10 11

0x06 ADR

0x4C 0x41 0x55 0x04 ICHKH Ret ICHKD

Ret

Value: Full 32-bit range

Type: Unsigned long

Length: 4

Description: Current number of write/erase cycles, where the first byte is

LSB

1 2 ... 117 118 119 120 121 122 123 124 125 126 127 ... 130 131

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Beijer-electronics SCOM Protocol EN Manual de usuario Pagina 122