(c) Answer (Display Response to Host)

1Answer at the time of Control request

No.

Item

Value

1

Header

0x70: Answer

 

 

 

2

Answer*

0x00: Completed (Normal completion)

 

 

 

 

 

0x01: Limit Over

 

 

(Abnormal completion: Over upper limit)

 

 

 

 

 

0x02: Limit Under

 

 

(Abnormal completion: Under lower limit)

 

 

 

 

 

0x03: Command Canceled

 

 

(Abnormal completion)

 

 

 

3

Check Sum

0xXX

 

 

* 0x00: Completed

Packet is correctly received and process is

 

 

also correctly completed.

0x01: Limit Over

Packet is correctly received, but the data

 

 

value is over the upper limit.

0x02: Limit Under

Packet is correctly received, but the data

 

 

value is under the lower limit.

0x03: Command Canceled Packet is correctly received, but the data

 

 

value is not correct or the request cannot be

 

 

accepted in the current host state.

* Check Sum:

If the value of a sum total of 1 and 2

 

 

exceeds 255 (1 byte), the data of 1 lower

 

 

byte is effective.

2Answer at the time of Enquiry request (Normal completion)

No.

Item

Value

1

Header

0x70: Answer

 

 

 

2

Answer

0x00: Completed

 

 

 

3

Return Data Size

0xXX

 

 

 

4

Return Data1

0xXX

 

 

 

:

:

0xXX

 

 

 

:

:

0xXX

 

 

 

X

Return DataX

0xXX

 

 

 

X+1

Check Sum

0xXX

 

 

 

*0x00: Completed packet is correctly received and process is also correctly completed.

*Return Data returns the read value.

*Check Sum: If the value of a sum total of 1 to X exceeds 255 (1 byte), the data of 1 lower byte is effective.

3Answer at the time of Enquiry request (Abnormal completion)

No.

Item

Value

1

Header

0x70: Answer

 

 

 

2

Answer

0x03: Command Canceled

 

 

(Abnormal completion)

 

 

 

3

Check Sum

0xXX

 

 

 

* 0x03: Command Canceled

Packet is correctly received, but the

 

data value is not correct or the request

 

cannot be accepted in the current host state.

* Check Sum:

If the value of a sum total of 1 to 2 exceeds

 

255 (1 byte), the data of 1 lower byte is

 

effective.

4Error Answer

No.

Item

Value

1

Header

0xE0: Answer

 

 

 

2Answer* 0x00: No Function Error 0x01: Check Sum Error

0x02: Data Number Error

0x06: Mode Error

 

 

0x07: Time Out

3

Check Sum

0xXX

 

 

* 0x00: No Function Error

Packet header, category and function code

 

 

are not included in this protocol.

0x01: Check Sum Error

Check sum value of received packet is not

 

 

correct.

0x02: Data Number Error Data value in “Data Number” area of the

 

 

received packet is different from the data

 

 

number of the function.

0x06: Mode Error

Monitor is already in the service mode by the

 

 

operation of remote commander. (IR remote

 

 

commander precedes the serial remote

 

 

commander.)

0x07: Time Out

Packet communication is interrupted due to an

 

 

error and does not return to the normal

 

 

communication state within 2 seconds.

4

FWD-50PX1

Page 6
Image 6
Sony FWD-50PX1 manual Answer Display → Response to Host, Answer at the time of Control request, Error Answer