Advantech Data Acquisition Modules ADAM 4000 Manual de usuario descargar pdf (Pagina 165)

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101

Chapter 5

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ADAM 4000 Series User’s Manual

4011, 4011D, 4012, 4013,

4016, 4017, 4018, 4018M

$AA1

Name Offset Calibration command

Description Calibrates an analog input module to correct for offset

errors.

Syntax $AA1(cr)

$ is a delimiter character.

AA (range 00-FF) represents the 2-character hexadecimal

address of the analog input module you want to calibrate.

1 is the Offset Calibration 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 indicates a valid command was

received.

delimiter character indicates the command was invalid.

AA (range 00-FF) represents the 2-character hexadecimal

address of the analog input module.

(cr) represents terminating character, carriage return (0Dh).

In order to successfully calibrate an analog input module’s

input range, a proper calibration input signal should be

connected to the analog input module before and during the

calibration. (See also Chapter 8, Calibration)

NOTICE: An analog input module requires a maximum of 7 seconds to

perform auto calibration and ranging after it received an Offset

Calibration command. During this interval, the module can not

be addressed to perform any other actions.

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