Advantech Data Acquisition Modules ADAM 4000 - Manual (Page 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
o C.
(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℃.