Chapter 6

 

 

$aaSiCj6

$aaSiCj6

Name

Last Value Readback

Description

Returns either the last value sent to the specified

 

channel by a #aaSiCj(data) command, or the start-up

 

output current/voltage.

Syntax

$aaSiCj6(cr)

 

$ is a delimiter character.

 

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

 

address of the ADAM-5000 system.

 

SiCj identifies the I/O slot i (i : 0 to 3) and the channel

 

j (j : 0 to 3) for the module you want to return a prior

 

value.

 

6 is the last value readback command.

 

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

Response

!aa(data)(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.

 

(data) is the value that is returned by the analog output

 

module. The format of the data depends on the module‘s

 

configurated data format.

 

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

ADAM-5000

6-105

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Advantech RS-485 user manual Syntax $aaSiCj6cr