Lexicon MC-12HD - Send Display String Command; MC-12 HD Get Parameter Definition by ID

Lexicon MC-12HD Serial Communications Protocol
7.3.10 Send Display String Command
This command allows the Host to send a 40-character string to the MC-12HD for display on the OSD and
Front Panel Display.
7.3.10.1 Packet Description
Application Header:
Command DC_CMD_SET_DISPLAY_STR 0x33
Data Count Number of characters in the
DisplayStr + 2
nn
Application Data:
Data[0] DisplayFlags nn
Data[1]-Data[DataCount-1] DisplayStr ch ch ch … 0x00
7.3.10.2 Display Command Flags Data Description
Word Bit Definition
0 0 FPD only: If set TRUE, the display string will only be sent to the
FPD device for display.
Display String:
Data Type: Null (0x00) terminated ASCII character string.
Max Length: 40 Characters.
7.3.10.3 MC-12HD Response
The display string is sent to the OSD and Front Panel Display. The MC-12HD will ACK when completed
with this command.
7.3.10.4 Data Validation:
If a string length exceeds the 40-character maximum the string will be truncated before displaying and the
MC-12HD transmit a DC_NAK command with an error code DC_INVALID_DATA.
7.3.11 MC-12HD Get Parameter Definition by Id
Request to MC-12HD for a Parameter Definition by Parameter Id. MC-12HD will respond with “MC-12HD
Parameter Definition Packet”.
7.3.11.1 Command Packet Description
Application Header:
Command MC_GET_PARAM_BY_ID 0x35
Data Count 2 0x02
Application Data:
Data[0] ParamId(LSB) nn
Data[1] ParamId(MSB) nn
7.3.11.2 Data Description
ParamId:
Data Type: Unsigned 16 bit Integer
Max Value: Max Parameter Count as reported by the MC-12HD Unit Configuration Response
Packet in
MC-12HD Unit Configuration Response Packet
16