NEC V801 Manuale Utente
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11. Self diagnosis
11.1 Self-diagnosis status read
This command is used in order to read the Self-diagnosis status.
1) The controller requests the monitor to read Self-diagnosis status.
Header
Message
Check code
Delimiter
SOH-'0'-Monitor ID-'0'-'A'-'0'-'4'
STX-'B'-'1'-ETX
BCC
CR
Header
SOH (01h): Start of Header
'0' (30h): Reserved
Monitor ID: Specify the Monitor ID which you want to get status.
'0' (30h): Reserved
Monitor ID: Specify the Monitor ID which you want to get status.
Ex.) If Monitor ID is '1', specify 'A'.
'0' (30h): Message sender is the controller.
'A' (41h): Message type is "Command".
'0'-'4'(30h, 34h): Message length
'A' (41h): Message type is "Command".
'0'-'4'(30h, 34h): Message length
Message
STX (02h): Start of Message
'B'-'1' (42h, 31h): Self-diagnosis command
ETX (03h): End of Message
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.5
Refer to the section 4.5
“Check code” for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies a result of the self-diagnosis.
Header
Message
Check code
Delimiter
SOH-'0'-'0'-Monitor ID-'B'-N-N
STX-'A'-'1'-
ST(0)-ST(1) --------ST(n)-ETX
ST(0)-ST(1) --------ST(n)-ETX
BCC
CR
Header
SOH (01h): Start Of Header
'0' (30h): Reserved
'0' (30h): Message receiver is the controller.
Monitor ID: Indicate a replying Monitor ID.
'0' (30h): Reserved
'0' (30h): Message receiver is the controller.
Monitor ID: Indicate a replying Monitor ID.
Ex.) When this byte is set to 'A', the replying Monitor ID is '1'.
'B' (42h): Message type is "Command reply".
N-N: Message length
N-N: Message length
Note.) The maximum data length that can be written to the monitor at a time is 32bytes.
Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (34h and 30h).
Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (34h and 30h).
Message
STX (02h): Start of Message
'A'-'1' (41h, 31h): Application Test Report reply command
ST: Result of self-tests
ST: Result of self-tests
'0'-'0'(30h, 30h):00: Normal
'7'-'0'(37h, 30h):70: Standby-power +3.3V abnormality
'7'-'1'(37h, 31h):71: Standby-power +5V abnormality
'7'-'2'(37h, 32h):72: Panel-power +12V abnormality
'7'-'8'(37h, 38h):78: Inverter power/Option slot2 power +24V Abnormality
'8'-'0'(38h, 30h):80: Cooling fan-1 abnormality
'8'-'1'(38h, 31h):81: Cooling fan-2 abnormality
('8'-'2'(38h, 32h):82: Cooling fan-3 abnormality)
'9'-'0'(39h, 30h):90: Inverter abnormality
'9'-'1'(39h, 31h):91: LED Backlight abnormality
'A'-'0'(41h, 30h):A0: Temperature abnormality
'7'-'0'(37h, 30h):70: Standby-power +3.3V abnormality
'7'-'1'(37h, 31h):71: Standby-power +5V abnormality
'7'-'2'(37h, 32h):72: Panel-power +12V abnormality
'7'-'8'(37h, 38h):78: Inverter power/Option slot2 power +24V Abnormality
'8'-'0'(38h, 30h):80: Cooling fan-1 abnormality
'8'-'1'(38h, 31h):81: Cooling fan-2 abnormality
('8'-'2'(38h, 32h):82: Cooling fan-3 abnormality)
'9'-'0'(39h, 30h):90: Inverter abnormality
'9'-'1'(39h, 31h):91: LED Backlight abnormality
'A'-'0'(41h, 30h):A0: Temperature abnormality
– shutdown
'A'-'1'(41h, 31h):A1: Temperature abnormality
– half brightness
'A'-'2'(41h, 32h):A2: SENSOR reached at the temperature that the user had specified.
'B'-'0'(42h, 30h):B0: No signal
'C'-'0'(43h, 30h):C0: Option board abnormality
'B'-'0'(42h, 30h):B0: No signal
'C'-'0'(43h, 30h):C0: Option board abnormality