4-62 ADAM 4000 Series User's Manual
$AAB
Name Channel Diagnose
Description Diagnose channel status in over range, under range, and wire
opening
Syntax $AAB(cr)
$ is a delimiter character
AA (range 00-FF) represents the 2-character hexadecimal
address of the analog input module to be detected.
B is the channel diagnose command.
(cr) is the terminating character, carriage return (0Dh)
Response !AA0(cr) if the module detects a close thermocouple. (4011D
only)
!AA1(cr) if the module detects an open thermocouple. (4011D
only)
!AANN(cr) if the command is valid when it applied with
ADAM-4015.
?AA(cr) if an invalid command was issued.
There is no response if the module detects a syntax error or
communication error of 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 the analog input module.
NN (range 00-FF) is a hexadecimal number that equals the 8-bit
parameter, representing the status of analog input channels. Bit
value 0 means normal status; and bit value 1 means channel
over range, under range, or open wiring.
(cr) is the terminating character, carriage return (0Dh)
4011D, 4015
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