ICP DAS USA I-87211W User Manual page 74

Key Description
DO Active Status
0: Output value 1 indicates that the relay is active
OAS
0: Output value 0 indicates that the relay is inactive
1: Output value 0 indicates that the relay is active
0: Output value 1 indicates that the relay is inactive
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.
Example:
Command: ~01D00
Response: !0100
Sets the DO active status of module 01 and
returns a valid response.
Command: ~01D
Response: !0100
Reads the miscellaneous settings of module 01
and returns 00.
Related Commands:
Section 2.21 ~AAD
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I-87211W User Manual