Advantech RS-485 user manual Si identifies the I/O slot for which you wish to initialize

Command Set		5017/5018 Analog Input
$aaSiER		$aaSiER
Name	Initialize EEPROM data
Description	Initializes all EEPROM data in a specified analog input
	module to their default values. This command is sent
	following a failed attempt to calibrate a module (the
	module shows no effect from an attempted calibration).
	Following initialization, the problem module should
	readily accept calibration.
Syntax	$aaSiER(cr)
	$ is a delimiter character.
	aa (range 00-FF) represents the 2-character hexadecimal
	address of the ADAM-5000 system.
	Si identifies the I/O slot for which you wish to initialize
	all EEPROM data.
	ER is Initialize all EEPROM data command.
	(cr) is the terminating character, carriage return (0Dh)
Response	!aa(cr) if the command is valid.
	?aa(cr) if an invalid operation was entered.

There is no response if the module detects a syntax error or communication error or if the specified address does not exist.

! delimiter character indicating a valid command was received.

? delimiter character indicating the command was invalid.

aa (range 00-FF) represents the 2-character hexadecimal address of an ADAM-5000 system.

(cr) is the terminating character, carriage return (0Dh)

6-50 ADAM-5000