Advantech Data Acquisition Modules ADAM 4000 Bedienungsanleitung PDF herunterladen (Seite 170)

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ADAM 4000 Series User’s Manual

4011, 4011D, 4018, 4018+, 4018M, 4019+

$AA3

Name CJC Status command

Description Instructs the addressed analog input module to read its CJC

(Cold Junction Compensation) sensors and return the

acquired data.

Syntax $AA3(cr)

$ is a delimiter character.

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

address of the analog input module which contains the CJC

Status you wish to retrieve.

3 is the CJC Status command.

(cr) is the

terminating character, carriage return (0Dh).

Response >data(cr) if the command is valid.

?AA(cr) if an invalid command was issued.

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 an analog input module.

(data) is the value that is retrieved by the module by

reading its CJC sensor. The data format, in degrees Celsius,

consists an “+” or “-” sign followed by five decimal digits

and a fixed decimal point. The resolution of the data is 0.1

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

Example command: $093(cr)

response: >+0036.8(cr)

The command requests the analog input module at address

09h to read its CJC sensor and return the data. The analog

input module at address 09h responds with: 36.8℃.

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