Set parameter command - MD30

MD30 Interface Description

Document code
M212201EN
Revision
E
Language
English
Product
MD30
Document type
Technical description

The setparam command sends the SET PARAMETER message to the unit and parses the response.

The command takes 2 parameters: the parameter ID and the new parameter value. Only numeric values are counted as parameters.

Example 1

Setting an integer value. Only integer values are accepted.

/> setparam 0x11 1
/> Unit ID: 1, Client ID: 0, ID: 0x41, Nb: 22, Len: 2, icd_version: D, Err: 0

/> getparam 0x11
/> Unit ID: 1, Client ID: 0, ID: 0x40, Nb: 23, Len: 5, icd_version: D, Err: 0
ID: 0x11 Value: 1 (Send CRC ack)

/> setparam 0x11 0.5
Value given in wrong format
/> getparam 0x11
/> Unit ID: 1, Client ID: 0, ID: 0x40, Nb: 24, Len: 5, icd_version: D, Err: 0
ID: 0x11 Value: 1 (Send CRC ack)

Example 2

Setting a floating point value.

/> setparam 0x40 0.95
/> Unit ID: 1, Client ID: 0, ID: 0x41, Nb: 25, Len: 2, icd_version: D, Err: 0

/> getparam 0x40
/> Unit ID: 1, Client ID: 0, ID: 0x40, Nb: 26, Len: 8, icd_version: D, Err: 0
ID: 0x40  Value: 0.95000  (Road T offset)

Example 3

Assigning an invalid ID.

An invalid ID causes an invalid data error (error code = 4).

/> setparam 0x16 1
/> Unit ID: 1, Client ID: 0, ID: 0x41, Nb: 27, Len: 2, icd_version: D, Err: 4

Example 4

Using an invalid value.

An invalid value causes an invalid data error (error code = 4).

/> setparam 0x31 2
/> Unit ID: 1, Client ID: 0, ID: 0x41, Nb: 28, Len: 2, icd_version: D, Err: 4

Example 5

Setting a value to a read-only parameter.

An attempt to change the value of a read-only parameter causes an invalid data error (error code = 4).

/> setparam 0x12 1
/> Unit ID: 1, Client ID: 0, ID: 0x41, Nb: 29, Len: 2, icd_version: D, Err: 4