Advantech ADAM 4000 user manual $AA1Hdatacr

4080D	Digital I/O and Relay Output
	Counter/Frequency Command Set
$AA1H(data)
Name	Set Non-isolated High Trigger Level command
Description	Set the high trigger level for non-isolated input signals for a
	specified counter/frequency module.
Syntax	$AA1H(data)(cr)
	$ is a delimiter character.
	AA (range 00-FF) represents the 2-character hexadecimal
	address that you will access to.
	1H is the Set Non-isolated High Trigger Level command.
	(data) is the high trigger level for non-isolated input
	The unit and resolution are both 0.1 V (voltage). The
	format is a two digit integer that range from 1 to 50 (i.e. 0.1
	to 5 V). This high trigger level must at all times be higher
	than the low trigger level which is set by the $AA1L(data)
	command. When the high trigger level is out of range or
	lower than the low trigger level, an error will occur.
	(cr) is the terminating character, carriage return (0Dh).
Response	!AA(cr) if the command is valid. The addressed module
	stores the value and will recognize input signal as “high”
	only when they exceed the high trigger level
	?AA(cr) if an invalid operation was entered.
	There is no response if the module detects a syntax or
	communication error, or even if the specified address does
	not exist.
	! is a delimiter character which indicates a valid command.
	? is a delimiter character which indicates an invalid
	command.
	AA (range 00-FF) represents the 2-character hexadecimal
	address of the module.
	(cr) is the terminating character, carriage return (0Dh).
Example	command: $131H30(cr)
	response: !13(cr)
	The command requests the counter/frequency module at
	address 13 to set its non-isolated high trigger level to 3 V.
	The module stores the value and will identify the input
	signals to be “high” only after the signals exceed 3 V. This
	function can be used as a level filter.

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