Measurement-computing CB-7080 Manual do Utilizador descarregar pdf (Página 36)

CB-7080 & CB-7080D Counter/Timer User's Guide $AA3N

2-18

$AA3N

Description: Read the maximum counter value.

Syntax: $AA3N[chk](cr)

$ A delimiter character

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

N=0 channel-0 of counter or frequency

N=1 channel-1 of counter or frequency

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

(cr) 0x0D

Response:

Valid response !AA(data)[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

(data) 8-character HEX value.

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

(cr) 0x0D

Examples:

Counter-0 from preset value to FFFFh

command: $0130(cr)

response: !010000FFFF(cr)

Counter-1 from preset value to FFFFFFFFh

command: $0131(cr)

response: !01FFFFFFFF(cr)

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 73 74

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Measurement-computing CB-7080 Manual do Utilizador Página 36