Chapter 4 Command Set 4-183
4080, 4080D
Chapter 4
$AA3N
Name Read Maximum Counter Value
Description Read the maximum counter value of the counter 0 or counter 1
for a specified counter/frequency module.
Syntax $AA3N(cr)
$ is a delimiter character.
AA (range 00-FF) represents the 2-character hexadecimal
address of counter/frequency module that you want to interro-
gate.
3 identifies the Read Maximum Counter Value command
N determines the counter for which the maximum counter value
is to be set.
N = 0 represents counter 0
N = 1 represents counter 1
(cr) is the terminating character, carriage return (0Dh)
Response !AA(data)(cr) if the command is valid.
?AA(cr) if an invalid operation was entered.
There is no response if the module detects a syntax or commu-
nication error, or if the specified address does not exist.
! is a delimiter character indicating the command was valid.
? is a delimiter character indicating the command was invalid.
AA (range 00-FF) represents the 2-character hexadecimal
address of a counter input module.
(data) is the maximum counter value which consists of eight
hexadecimal digitals.
(cr) is the terminating character, carriage return (0Dh).
Example command: $2430(cr)
response: !240000ffff(cr)
The command requests the counter/frequency module at
address 24 to the maximum count number of counter 0. The
addressed module replies that the maximum count number of
channel 0 is 65535 (0000ffff)
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