I-7021/22/24, M-7022/24/28 User Manual, Rev: B2.3
131
2.40 ~AA4
Description:
Reads the power on and safe digital output values of a
module.
Syntax:
~AA4[CHKSUM](CR)
~
Delimiter character
AA
Address of the module to be read (00 to FF)
4
Command to read the power on and safe digital
output values
Response:
Valid command :
!AAPPSS[CHKSUM](CR)
Invalid command:
?AA[CHKSUM](CR)
!
Delimiter character for a valid command
?
Delimiter character for an invalid command
AA
Address of the responding module (00 to FF)
PP
Two hexadecimal digits to represent the power-
on DO value.
SS
Two hexadecimal digits to represent the safe DO
value.
There will be no response if the command syntax is
incorrect, there is a communication error, or there is no
module with the specified address.
M-7024U
Summary of Contents for M-7024
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