NEC UN552S External Controls - Page 93

Daylight Saving read & write

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17. Daylight Saving read & write 17.1 Daylight Saving Read This command is used in order to read the setting of Daylight Saving. 1) The controller requests the monitor to reply a Daylight Saving setting. Header SOH-'0'-Monitor ID- '0'-'A'-'0'-'8' Message STX-'C'-'A'-'0'-'1'-'0'-'0'-ETX Check code BCC Delimiter CR Header SOH (01h): Start of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID of 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'-'8'(30h, 38h): Message length (8bytes) Message STX (02h): Start of Message 'C'-'A'-'0'-'1' (43h, 41h, 30h, 31h): Daylight Saving Command '0'-'0' (30h. 30h): Read ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.3 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 2) The monitor replies Date & Time to the controller. Header Message SOH-'0'-'0'-Monitor ID'B'-'2'-'0' STX-'C'-'B'-'0'-'1'-'0'-'0'-ST-BM-BD1-BD -BT1-BT2-EM-ED1-ED2-ET1-ET2-TD-ETX Check code BCC Delimiter CR 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', replying monitor's ID is '1'. 'B' (42h): Message type is "Command reply". '2'-'0'(32h, 30h): Message length (32bytes) Message STX (02h): Start of Message 'C'-'B'-'0'-'1' (43h, 42h, 30h, 31h): Daylight Saving Setting reply command '0'-'0' (30h, 30h): Read ST: Error Status No Error : 00h (30h, 30h) Error : 01h (30h, 31h) BM: BEGIN MONTH JANUARY - DECEMBER: 01h (30h, 31h) - 12h (31h, 32h) BD1: BEGIN DAY1 FIRST : 01h (30h, 31h) SECOND : 02h (30h, 32h) THIRD : 03h (30h, 33h) FOUR : 04h (30h, 34h) (93/145)

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(93/145)
17. Daylight Saving read & write
17.1 Daylight Saving Read
This command is used in order to read the setting of Daylight Saving.
1) The controller requests the monitor to reply a Daylight Saving setting.
Header
Message
Check code Delimiter
SOH-'0'-Monitor ID-
'0'-'A'-'0'-'8'
STX-'C'-'A'-'0'-'1'-'0'-'0'-ETX
BCC
CR
Header
SOH (01h): Start of Header
'0' (30h): Reserved
Monitor ID: Specify the Monitor ID of 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'-'8'(30h, 38h): Message length (8bytes)
Message
STX (02h): Start of Message
'C'-'A'-'0'-'1' (43h, 41h, 30h, 31h): Daylight Saving Command
'0'-'0' (30h. 30h): Read
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.3
“
Check code
”
for a BCC calculation.
Delimiter
CR (0Dh): End of packet
2) The monitor replies Date & Time to the controller.
Header
Message
Check
code
Delimiter
SOH-'0'-'0'-Monitor ID-
'B'-'2'-'0'
STX-'C'-'B'-'0'-'1'-'0'-'0'-ST-BM-BD1-BD
-BT1-BT2-EM-ED1-ED2-ET1-ET2-TD-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.
Ex.) When this byte is set to
‘
A
’
, replying monitor
’
s ID is
‘
1
’
.
'B' (42h): Message type is "Command reply".
'2'-'0'(32h, 30h): Message length (32bytes)
Message
STX (02h): Start of Message
'C'-'B'-'0'-'1' (43h, 42h, 30h, 31h): Daylight Saving Setting reply command
'0'-'0' (30h, 30h): Read
ST: Error Status
No Error : 00h (30h, 30h)
Error
: 01h (30h, 31h)
BM: BEGIN MONTH
JANUARY
–
DECEMBER: 01h (30h, 31h) - 12h (31h, 32h)
BD1: BEGIN DAY1
FIRST : 01h (30h, 31h)
SECOND : 02h (30h, 32h)
THIRD : 03h (30h, 33h)
FOUR
: 04h (30h, 34h)