Technical information

zzCommand transmission method

Transmit using the following command formats.

Transmitted data

 

 

 

Header

 

 

Data section

 

 

Termination

 

 

 

 

 

 

 

symbol

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

‘0’

 

 

 

 

‘0’

 

 

Control command

 

 

(CR)

 

 

0x30

 

 

 

 

0x30

 

 

(ASCII string)

 

 

0x0d

 

 

1 byte

 

 

 

 

1 byte

 

 

 

Undefined length

 

 

 

1 byte

 

 

Received data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Header

 

 

Data section

 

 

Termination

 

 

 

 

 

 

 

symbol

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

‘0’

 

 

 

 

‘0’

 

 

Control command

 

 

(CR)

 

 

0x30

 

 

 

 

0x30

 

 

(ASCII string)

 

 

0x0d

 

 

1 byte

 

 

 

 

1 byte

 

 

Undefined length

 

 

1 byte

 

Error response

 

Error message

 

Termination symbol

“ERR1” Undefined control command

 

 

 

“ERR2” Out of parameter range

 

 

 

“ERR3” Busy state or no-acceptable period

 

(CR)

“ERR4” Timeout or no-acceptable period

 

0x0d

“ERR5” Wrong data length

 

 

 

“ERRA” Password mismatch

 

 

 

 

4 bytes

 

 

1 byte

 

Appendix

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