ADLINK ND-6054 - Manual (Page 103)

Command Set • 95
3.19 Change Polarity
@Description
To change the polarity state of digital inputs and outputs of the module.
@Syntax
~(Addr)CP(State)
~ Command leading code (1 character)
(Addr) Address ID (2 characters)
CP Change Polarity (2 characters)
(State)
Polarity state of digital inputs and outputs (2characters)
00 : Do not change polarity
01 : Change the polarity of digital inputs
02 : Change the polarity of digital outputs
03 : Change the polarity both the digital inputs and outputs
@Response
!(Addr)
or
?(Addr)
! Command is valid.
? Command is invalid.
(Addr) Address ID.
@Example
User command: ~06CP01
Response: !06
To change the polarity of digital inputs of the DI/O module which ID is 06H.
Note : For this command ,you could define the logic level which you want,
For example, if the input connect to high level signal ,and you want
to read back the input as a “0”,then you could change the polarity to
fit your requirement .