Advantech 5000 Series - Manual (Page 174)

Chapter 6
There is no response if the module detects a syntax error
or communi
cation error or if the specified address
does not exist.
Note: ! delimiter character indicating a valid command
was received.
? delimiter character indicating the command was
invalid.
aa (range 00-FF) represents the 2-character hexadecimal
address of an ADAM-5000 system.
(datainput) a 2-character hexadecimal value representing
the input values of the digital input module.
(dataoutput) a 2-character hexadecimal value which is the
read back of a digital output channel or relay.
(cr) is the terminating character, carriage return (0Dh)
Example command: $33S26(cr)
response: !33112200(cr)
The command asks the digital input module in slot 2 of
the ADAM-5000 system at address 33h to return the
values of all of its channels.
The first 2-character portion of the response indicates
the address of the ADAM-5000 system.
The second 2-character (high byte) portion of the
response, value 11h (00010001), indicates that digital
input channels 8 and 12 are ON, channels 9, 10, 11, 13, 14
and 15 are OFF.
The third 2-character (low byte) portion of the response,
value 22h (00100010), indicates that digital input
channels 1 and 5 are ON, and channels 0, 2, 3, 4, 6 and 7
are OFF.
ADAM-5000 6-109