A&D GH Series Manual de Instruções descarregar pdf (Página 64)

A&D GR Series Instruction Manual

GB 64

16.5. Acknowledge Code and Error Codes

This is an explanation of ErCd in the function list

<AK> (06h) --- Acknowledge in ASCII code.

In the Case of erCd 0

• The balance does not output <AK> code or the error code.

In the Case of erCd 1

• When the balance receives a command requesting data and cannot 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 cannot 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 again.

16.6. Control using CTS and RTS

This is an explanation of CtS in the function list

In the Case of CtS 0

• 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 of CtS 1

• 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).

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A&D GH Series Manual de Instruções Página 64