Advantech RS-100-RT Manual de usuario descargar pdf (Pagina 144)

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4-60 ADAM 4000 Series User's Manual

$AA4

Name Read Synchronized Data

Description Returns the input value that was stored in the addressed

module’s register, after a Synchronized Sampling command #**

was issued.

Syntax $AA4(cr)

$ is a delimiter character.

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

address of the analog input module from which data is to be

sent.

4 is the Read Synchronized Data command.

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

Response !AA(status)(data)(cr) if the command was 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.

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

address of the analog input module that is responding.

(status) will tell you if the data (data) from the last Synchronized

Sampling command (#**) has already been sent. If status=1,

then the data has been sent for the first time since a Synchro-

nized Sampling command was issued. If status=0, then the data

has been sent at least once before.

(data) a value

stored in a special register of the interrogated

module in the configured data format. It has been sampled by

the module after a Synchronized Sampling command. (For

possible data formats, see Appendix B, Data Formats and I/O

Ranges)

(cr) represents terminating character,

carriage return (0Dh).

4011, 4011D, 4012, 4013, 4015,

4016, 4019

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Advantech RS-100-RT Manual de usuario Pagina 144

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