| Command |
#AAN |
| Description |
Read digital input counter from specified channel |
| Syntax |
#AAN[CHK](cr)
| # |
a delimiter character |
| AA |
address of reading module (00 to FF) |
| N |
channel to read |
| [CHK] |
2 characters of checksum |
| (cr) |
Character Return(0x0D) for denote the end of command |
|
| Response |
| Valid Command |
!AA(Data)[CHK](cr) |
| Invalid Command |
?AA[CHK](cr) |
Syntax error or communication error may get no response.
| ! |
delimiter for valid command |
| ? |
delimiter for invalid command. If the channel is not available or not enabled, the module will response as invalid command. |
| AA |
address of response module (00 to FF) |
| (Data) |
digital input counter value in decimal, from 00000 to 65535 |
| [CHK] |
2 characters of checksum |
| (cr) |
Character Return(0x0D) for denote the end of response |
|
| Example |
| Command |
#015 |
| Response |
!0500103 |
| Description |
Read digital input counter of channel 5 of address 01, response counter value is 103. |
|
| Reference |
$AACN
|
|