Measurement Computing CB-7080 - Manual (Page 46)

CB-7080 & CB-7080D Counter/Timer User's Guide $AA9(data)
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$AA9(data)
Description : Send data to the LED display.
Syntax : $AA9(data)[chk](cr)
$ A delimiter character
AA 2-character HEX module address, from 00 to FF
9 The function to execute.
(data) 5 decimal digit + 1 decimal point
Maximum = 99999.
Minimum = 0.0000
[chk] 2-character checksum. If checksum is disabled, no [chk]
(cr) 0x0D
Response :
Valid response !AA[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
[chk] 2-character checksum. If checksum is disabled, no [chk]
(cr) 0x0D
Examples :
Show max. = 99999:
command: $01999999.(cr)
response: !01(cr)
Show min. = 0.0000:
command: $0290.0000(cr):
response: !02(cr)
Show display = 12.345:
command: $03912.345(cr)
response: !03(cr)