NEC RS-232C 用户手册
(38/72)
7.2 Power control
1) The controller requests the monitor to control monitor power.
Header
SOH (01h): Start Of Header
'0' (30h): Reserved
Monitor ID: Specify the Monitor ID which you want to change a setting.
'0' (30h): Reserved
Monitor ID: Specify the Monitor ID which you want to change a setting.
Ex.) If Monitor ID is '1', specify 'A'.
'0' (30h): Message sender is the controller.
'A' (41h): Message type is "Command".
'0'-'C (30h, 43h): Message length is 12 bytes.
'A' (41h): Message type is "Command".
'0'-'C (30h, 43h): Message length is 12 bytes.
Message
STX (02h): Start of Message
'C'-'2'-'0'-'3'-'D'-'6' (43h, 32h, 30h, 33h, 44h, 36h): power control command
'0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Power mode
'C'-'2'-'0'-'3'-'D'-'6' (43h, 32h, 30h, 33h, 44h, 36h): power control command
'0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Power mode
0001: ON
0002, 0003: Do not set.
0004: OFF (same as the power off by IR)
0002, 0003: Do not set.
0004: OFF (same as the power off by IR)
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 data for confirmation.
Header
SOH (01h): Start Of Header
'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
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' (32h and 30h).
Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h).
Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Result code. No error.
'0'-'0' (30h, 30h): Result code. No error.
'C'-'2
’,'0'-'3'-'D'-'6' (43h, 32h, 30h, 33h, 44h, 36h): power control reply command
The monitor replies same as power control command to the controller.
'0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Power mode
0001: ON
0002, 0003: Do not set.
0004: OFF (same as the power off by IR)
0002, 0003: Do not set.
0004: OFF (same as the power off by IR)
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.
Header
Message
Check code
Delimiter
SOH-'0'-Monitor ID-'0'-'A'-'0'-'C'
STX-'C'-'2'-'0'-'3'-'D'-'6'-
'0'-'0'-'0'-'1'-ETX
'0'-'0'-'0'-'1'-ETX
BCC
CR
Header
Message
Check ode
Delimiter
SOH-'0'-'0'-Monitor
ID-'B'-'0'-'E'
ID-'B'-'0'-'E'
STX-'0'-'0'-'C'-'2'-'0'-'3'-'D'-'6'-
'0'-'0'-'0'-'1'-ETX
'0'-'0'-'0'-'1'-ETX
BCC
CR