Lexicon MC-12 用户指南

Lexicon
MC-12 Serial Communications Protocol

Printed on: 07/13/05

If ParamId exceeds the its maximum value, the MC-12 will ignore the command and transmit a
DC_NAK command with an error code DC_INVALID_PARAM_ID.

7.3.42.4 MC-12 Response

If a parameter has been enabled for notification the MC-12 will transmit its current value
whenever it has been changed due to any user or system action. For the details of the MC-12
notification packet, see

7.1.5 (MC12_Parameter_Notification_By_Id)

7.3.43 MC-12 Parameter Get Value String by Id (MC-12)

Request to MC-12 for the string representation of a given value for a given parameter. The MC-12 will
respond with a “Value String Response Packet”.

7.3.43.1 Command Packet Description

Application Header:

Command MC_CMD_PARAM_GET_VALUE_STRING_BY_ID 0x3C

Data Count

0x17

Application Data:
Data[0] ParamId

(LSB)

Data[1] ParamId

(MSB)

Value[0] - Value[20]

nn nn
nn ..

Data[2] - Data[22]

7.3.43.2 Data Description

ParamId:

Data Type:

Unsigned 16 bit integer.

Max:

Max Parameter Count as reported by the MC-12 Unit Configuration

Response Packet in 7.3.39.2

Value:
See

MC12_Value_Union_Description

7.3.43.3 Data Validation

If ParamId exceeds the its maximum value, the MC-12 will ignore the command and transmit a
DC_NAK command with an error code DC_INVALID_PARAM_ID.

7.3.43.4 MC-12 Value String Response Packet

Application Header:
Command MC_RESP_VALUE_STRING

0x93

Number of Characters in Value
String + 1

Data Count
Application Data:

Data[0] - Data[20]

ch ch ch
… 0x00

Value String

7.3.43.5 Data Description

Value

String:

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