8-13
8-7 Command
Mode
The indicator receives a command transmitted from a peripheral unit like a computer in the
communication procedure shown below, and operates in compliance with the command and responds
with a result.
*
The communication procedure depends on the type of command.
*
When the command is not accepted due to an error (improper command or faulty data), a
“negative acknowledgment” is made.
Communication procedure
Procedure
Response to Acceptable Commands
Host command
Indicator command
Procedure A
Returns the same command as the one sent from the host for a sign of the
acknowledgement.
Host command
Indicator data
Procedure B
Returns the data that the command requested.
Host command
data
Indicator command
data
Procedure C
Returns the same command for a sign of the acknowledgement, and sends the
requested data with terminators, CR or CR LF (selectable at RSF-07)
Host command
Indicator data
data
…
data
EOF
Procedure D
Returns all the requested data. Each command differs in the number of output
data
Press [ESC] to stop the data flow in the middle.
Response
*
Any response to a command is made within 200 ms after receiving the command.
Type
Response
Procedure A
Returns the same command.
Procedure B, D Returns the data.
Acknowledgement
Procedure C
Returns the same command
and waits to receive the data.
Negative Acknowledgement: Improper mode
Not acceptable because of a wrong mode.
IE
Negative Acknowledgement: Improper Range
Not acceptable because data is out of the range.
VE
Negative Acknowledgement: Improper Command / Data
Not acceptable because of a wrong data format
?E
Содержание Explosion Protected Weighing Indicator AD-4403-FP ST Series
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