GX-A Series/GF-A Series Communication Manual 24 / 41
When the internal setting （AK、error code on）is set、the balance always responds to
reception of all commands sent from a PC or a PLC. Communication reliability is improved by
checking the responding code.
When the internal setting （AK、error code on）is set, the balance responds with the
following.
□ When sending a command requesting various data to the balance, if the balance cannot
transmit the requested data, it sends an error code (EC, Exx). If the balance can output the
requested data, the requested data will be sent.
□ When sending a controlling command to the balance, if the balance cannot execute the command,
it sends an error code (
EC, Exx). If the balance can execute the c
ommand, it sends the <AK>
code.
<AK> code is the ASCII 06h code.
□ The commands below are processed by the balance, so it will send the <AK> command not only
when a command is received, but also at the end of processing. If the process does not end
normally, the balance sends an error code (EC, Exx), in which case the error is canceled with
the CAL command.
ON command Display on
P command Display on / off（However, only when already on）
R、Z、RZ commands Re-zero（Semi-automatic zero point setting）
T、TR commands Tare the balance
ZR command Zero（Setting the zero point）
CAL command Calibration with built-in weight（GX-A Series）
Calibration with a separate weight（GF-A Series）
EXC command Calibration with a separate weight（GX-A Series）
8-2. The <AK> code and error codes
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