NEC C751Q External Controls - Page 55

Asset Data write

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8.2 Asset Data write This command is used in order to write Asset Data. 1) The controller requests the monitor to write Asset data. Header Message SOH-'0'-Monitor ID'0'-'A'-N-N STX-'C'-'0'-'0'-'E'-'0'-'0'Data(0)-Data(1)---Data(N)-ETX Check code BCC Delimiter CR Header SOH (01h): Start of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID in which you want to write data. Ex.) If Monitor ID is '1', specify 'A'. '0' (30h): Message sender is the controller. 'A' (41h): Message type is "Command". N-N: Message length Note.) The maximum data length that can be written to the monitor at a time is 32bytes. Message STX (02h): Start of Message 'C'-'0'-'0'-'E' (43h, 30h, 30h, 45h): Asset Data writes command '0'-'0'(30h, 30h): Offset address from top of Asset data. 00h : Write data from top of the Asset data area. Data(0) -- Data(N): Asset data. The data must be ASCII characters strings. 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 a data for confirmation. Header Message SOH-'0'-'0'-Monitor ID'B'-N-N STX-'0'-'0'-'C'-'0'-'0'-'E'-'0'-'0'Data(0)-Data(1)---Data(N)-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', 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. Message STX (02h): Start of Message '0'-'0': Result code. No error. 'C'-'0'-'0'-'E' (43h, 30h, 30h, 45h): Asset Data write command '0'-'0'(30h, 30h): Offset address from top of Asset data. 00h : Write data into from top of the Asset data area. Data(0) -- Data(N): Asset data. The data must be ASCII characters strings. ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.3 "Check code" for a BCC calculation. (55/145)

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(55/145)
8.2 Asset Data write
This command is used in order to write Asset Data.
1) The controller requests the monitor to write Asset data.
Header
Message
Check
code
Delimiter
SOH-'0'-Monitor ID-
'0'-'A'-N-N
STX-'C'-'0'-'0'-'E'-'0'-'0'-
Data(0)-Data(1)---Data(N)-ETX
BCC
CR
Header
SOH (01h): Start of Header
'0' (30h): Reserved
Monitor ID: Specify the Monitor ID in which you want to write data.
Ex.) If Monitor ID is '1', specify 'A'.
'0' (30h): Message sender is the controller.
'A' (41h): Message type is "Command".
N-N: Message length
Note.) The maximum data length that can be written to the monitor at a time is
32bytes.
Message
STX (02h): Start of Message
'C'-'0'-'0'-'E' (43h, 30h, 30h, 45h): Asset Data writes command
'0'-'0'(30h, 30h): Offset address from top of Asset data.
00h : Write data from top of the Asset data area.
Data(0)
–
- Data(N): Asset data. The data must be ASCII characters strings.
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 a data for confirmation.
Header
Message
Check
code
Delimiter
SOH-'0'-'0'-Monitor ID-
'B'-N-N
STX-'0'-'0'-'C'-'0'-'0'-'E'-'0'-'0'-
Data(0)-Data(1)---Data(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.
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.
Message
STX (02h): Start of Message
'0'-'0': Result code. No error.
'C'-'0'-'0'-'E' (43h, 30h, 30h, 45h): Asset Data write command
'0'-'0'(30h, 30h): Offset address from top of Asset data.
00h : Write data into from top of the Asset data area.
Data(0)
–
- Data(N): Asset data. The data must be ASCII characters strings.
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 4.3
“
Check code
”
for a BCC calculation.