201 ADAM-4000 Series User Manual
Chapter 7 I/O, Relay & Counter
Frequency
4050, 4051, 4052, 4053,
4055, 4060, 4068
7.1.4 #**
Name Synchronized Sampling command
Description Orders all (analog or digital) input modules to sample their
input values and store them into a special register.
Syntax #**
# is a delimiter character.
** is the Synchronized Sampling command.
The terminating character, in the form of a carriage
return (0Dh), is not required.
Response The digital I/O modules will not respond to the
Synchronized Sampling command. In order to retrieve the
data, you must execute a Read Synchronized Data
command for every module separately.
4050, 4051, 4052, 4053,
4055, 4060, 4068
7.1.5 $AA4
Name Read Synchronized Data command
Description The addressed digital I/O module is instructed to return the
value that was stored in its register by a Synchronized
Sampling command.
Syntax $AA4(cr)
$ is a delimiter character.
AA (range 00-FF) represents the 2-character hexadecimal
address of returning data.
4 is the Read Synchronized Data command.
(cr) is the terminating character, carriage return (0Dh).
Response !(status)(dataOutput)(dataInput)00(cr)
if the command was valid. (ADAM-4050)
!(status)(dataInput)00(cr)
if the command was valid. (ADAM-4051)
!(status)(dataInput)0000(cr)
if the command was valid. (ADAM-4052)
!(status)(dataInput)(dataInput)00(cr)
if the command was valid. (ADAM-4053)
!(status)(dataOutput)0000(cr)
if the command was valid. (ADAM-4060/4068)
?AA(cr) if an invalid command has been issued.
There is no response if the module detects a syntax or
communication error, or even if the specified address does not exist.
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