Measurement-computing CB-7080 Instrukcja Użytkownika Pobierz pdf (Strona 35)

CB-7080 & CB-7080D Counter/Timer User's Guide $AA2

2-17

$AA2

Description: Read the configuration of module.

Syntax: $AA2[chk](cr)

$ A delimiter character

AA 2-character HEX module address, from 00 to FF

[chk] 2-character checksum. If checksum is disabled, no [chk].

(cr) 0x0D

Response:

Valid response: !AATTCCFF[chk](cr),

Invalid response: ?AA[chk](cr)

no response: Syntax error, communication error or address error

! A delimiter character indicating a valid response

? A delimiter character indicating an invalid response

AA 2-character HEX module address

TT Refer to Table 1-10.

CC Refer to Table 1-8.

FF Refer to Table 1-9.

[chk] 2-character checksum. If checksum is disabled, no [chk].

(cr) 0x0D

Examples:

Address=01, counter, 9600 BPS, checksum disabled:

command: $012(cr)

response: !01500600(cr)

Address=02, frequency, 19200 BPS, checksum disabled:

command: $022(cr)

response: !02510700(cr)

Note

If you use the %AANNTTCCFF command to change module configuration, the new configuration code is

stored into EEPROM immediately.

The configuration code includes the module address, module type, baud rate code, checksum enable/disable

code, calibration code, power-on value and safe value.

The EEPROM data of a CB-7080 can be read an infinite number of times, and can be written about 100,000

times maximum. Therefore, you should not frequently change the configuration code for testing.

The $AA2 command is used to read EEPROM data only. You can send this command to CB-7080 module

without limit.

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Measurement-computing CB-7080 Instrukcja Użytkownika Strona 35