ADLINK ND-6021 - Manual (Page 37)

Command Set • 31
3.8 Read Synchronized Data (6024 only)
@Description
After a synchronized sampling command #** was issued, you can read the
input value that was stored in the addressed module’s register and use
same method to process other module‘s data one by one.
@Syntax
$(Addr)9
$ Command leading code.
(Addr) Address ID.
9 Read synchronized data.
@Response
!(Status)(DataIn)
or
?(Addr)
> Command is valid.
? Command is invalid.
(Status)
0 : Data has been sent at least once before.
1 : Data has been sent for the first time since a
synchronized sampling command was
issued.(1-character)
(DataIn) Value of digital input channel. (2-character).
@Examples
User command: $309
Response: >17F
> Command is valid.
1 Data has not been sent before.
7F
7F(01111111) means digital input channel
0,1,2,3,4,5,6 are HIGH.