4-160 ADAM 4000 Series User's Manual
Command Set
4050, 4052, 4053, 4060, 4051, 4055, 4068
$AA4
(dataOutput)
two-character hexadecimal value which either is
the readback of a digital output channel or a relay.
(dataInput) two-character hexadecimal value representing the
input values of the digital I/O module.
(cr) is the terminating character,
carriage return (0Dh).
Example command: $064(cr)
response: !1055100(cr)
The command asks the ADAM-4050 digital I/O module at
address 06h to send its digital input data that was gathered
during the last Synchronized Sampling command. The module
returns 1055100, meaning status = 1 : data has not been sent
before; dataOutput = 05h (00000101): digital output channels 0
and 2 are ON and channels 1, 3, 4, 5, 6, 7 are OFF; dataInput =
51h (01010001): digital input channels 0, 4, 6 are HIGH and
channels 1, 2, 3, 4, 5 are LOW.
The digital I/O module responds with data = 055100 and status
= 1, which means that this is the first time that the data has been
sent.
command: $064(cr)
response: !0055100(cr)
The command asks the digital I/O module at address 06h to sent
its digital input data.
The digital I/O module responds with data = 055100 and status
= 0, which means that it has sent the same data at least once
before. This may indicate that a previous Synchronized
Sampling command was not received!
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