User manual

Chapter 6 Planning Your Application Program
!aa(dataoutput)(dataoutput)00(cr) if the command is
valid. (ADAM-5050/5055/5056)
!aa(dataoutput)0000(cr) if the command is valid.
(ADAM-5060, ADAM-5068, ADAM-5069)
?aa(cr) if an invalid operation was entered. There is
no response if the module detects a syntax error or
communication error or if the specified ad- dress
does not exist.
! delimiter character indicating a valid command was
received.
? delimiter character indicating the command was
invalid.
aa (range 00-FF) represents the 2-character hexadeci-
mal Modbus network address of an ADAM-5000/
TCP system.
(datainput) a 2-character hexadecimal value represent-
ing 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: $01S26(cr)
response: !01112200(cr) The command asks
the digital input module in slot 2 of the
ADAM-5000/TCP system at address 01h to return
the values of all of its channels.
The first 2-character portion of the response indi-
cates the address of the ADAM-5000/TCP system.
The second 2-character 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 portion of the response,
value 22h (00100010), indicates that digital input chan-
nels 1 and 5 are ON, and channels 0, 2, 3, 4, 6 and 7
are OFF.
6-142 ADAM-5000/TCP User’s Manual