Emerson ak-protocol nga 2000 User Manual

I) 

V24/RS232/485-Interface - 

90003752(1) [AK-Commands] 10/98

AK

If an analyzer or a system is not in the "REMOTE" status, the control and write commands
have to report "OF" ("Offline") in the data set to the. In system units the channel number
has to be reported, too.

If one analyzer is missing, a system unit has to send the channel number and "NA" ("Not
Available") to the test bench control computer with control and write commands.

A response telegram is not possible, if the test bench control computer has a direct
contact to the analyzers and one analyzer is missing or the whole system is missing. So
the test bench control computer has to realize the missing of devices by "Time Out".

If the system or the analyzer is occupied by executing a function, the new start of a control
command will lead to the response "BS" (Busy) in the data block of the response
telegram. The running function will not be disturbed. Exception: The order was a software
reset.

If the data or parameters transfer is not complete (i.e. not expected format) in the
command telegram to the system or the analyzer, the test bench control computer will get
a "SE" (Syntax Error) in the data block of the following response telegram.

If the system or the analyzers cannot work with the data or the parameters of the
command telegram (data error, parameter error), the test bench control computer will get
a "DF" (data error) in the data block of the following response telegram.

Each transfer will end with "ETX" in the last byte.