A&D GR Series GR-300 - Manual (Page 62)

cknowledge Co
This is an explanation o f t > - i d of the function list
<AK> (06h) -—Acknowledge in ASCII code.
L I
n
u In the Case of h
□ The balance does not output <AK> code or the error code.
In the Case o f F r i d /
□ When the balance received a connmand requesting data and can not
process it, the balance transmits an error code ( EC, Exx).
When the balance is able to process a command requesting data, the
balance outputs the data.
□ When the balance receives a command to control the balance and can not
process it, the balance transmits an error code ( EC, Exx).
When the balance receives a command to control the balance and can
process it, the balance transmits <AK> (06h) code.
□ There are some commands that transmit plural <AK> (06h) code from the
balance. See "Command Examples"
CAL command (Calibration command) ON command (ON command)
P command (ON:OFF command) R command (RE-ZERO command)
TST command (Calibration test)
□ When a communication error has occurred due to external noise, or a parity
error has occurred due to transmission error, the balance transmits an error
code. In this case, send the command once more.
Control using CTS and
This is an explanation o f [ i - S of the function list.
r;
U In the Case of /_ t S
□ Regardless of whether the balance can receive a command or not, the
balance keeps the CTS line to Hi. The balance outputs data regardless of
condition of the RTS line.
In the Case o f F h S I
□ The CTS line is kept HI normally. When the balance can not receive the next
command (ex. processing last command), the balance sets CTS line to LO.
The balance confirms the level of the RTS line when data can be output.
If the RTS level is HI, the balance outputs data. If the RTS level is LO, data
is not output (It cancels data output).
Serial Interface page 61 16. Comnnand