ICP DAS USA I-7021, Руководство пользователя

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I-7021/22/24, M-7022/24/28 User Manual, Rev: B2.3 141
2.45 @AABB
Description:
Reads the retained analog output channel status of a
module. For a retained analog output channel, its power
on value will be the same as the value before power off.
Syntax:
@AABB[CHKSUM](CR)
@ Delimiter character
AA Address of the module to be read (00 to FF)
BB Command to read the retained analog output
channel status
Response:
Valid command : !AAHH[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)
HH A two-digit hexadecimal value, where bit 0
corresponds to channel 0, bit 1 corresponds to
channel 1, etc. When the bit is 1, it denotes that
the analog output channel is retained, and 0
denotes that the analog output channel is not
retained.
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