Advantech 5000 Series Manual de usuario descargar pdf (Pagina 206)

Chapter 6

$aaSiCj7

Name Read Overflow Flag

Description The command requests the addressed module to

return the status of the overflow flag of counter.

Syntax $aaSi7(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 i (i : 0 to 3).

7 is the command for the last value readback.

Response !aaff ff ff ff(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.

ffffffff is the number of overflow for a specified channel.

(ffffffff represents 0~3 channels, each of which is

represented by one ff).

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

Note:

When this command is issued, the overflow value is

cleared and starts afresh.

ADAM-5000 6-141

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Advantech 5000 Series Manual de usuario Pagina 206