Sony FWD-32LX1 Protocol Manual - Page 6

(c) Answer (Display → Response to Host) 1 Answer 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. 2 Answer 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 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. 3 Answer 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. 2 4 Error Answer No. Item Value 1 Header 2 Answer* 0xE0: Answer 0x00: No Function Error 0x01: Check Sum Error 0x02: Data Length Error 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 Length Error Packet is correctly received, but the data size is over the upper limit. FWD-42LX1 FWD-32LX1