KROHNE MFC 010 C Converter - Manual (Page 30)

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MFC010 Interface Manual
6.6 06 (06
16
): Preset Single Register
This function permits the user to set the value of a single Holding register. For this reason this command
cannot be used to write to variables that occupy multiple consecutive registers such as floating point and
long integer variables (See Section 7.5 on page 49 for details of the individual registers). The format of
the Master request telegram for this function should be as follows.
Request
Character
Field For Example
1 Slave Address 01
16
Request to Slave ID 1
2 Function 06
16
“Preset Single Register”
3 Register Address Hi 03
16
Register Address = 1020
4 Register Address Lo FB
16
5 Preset Data Hi 00
16
Set Register 1020 = 35
6 Preset Data Lo 23
16
7 CRC Lo B9
16
CRC Checksum
8 CRC Hi A6
16
The MFC010 will respond to such a request with a telegram formatted as follows.
Response
Character
Field For Example
1 Slave Address 01
16
Response from Slave ID 1
2 Function 06
16
“Preset Single Register”
3 Register Address Hi 03
16
Register Address = 1020
4 Register Address Lo FB
16
5 Preset Data Hi 00
16
Set Register 1020 = 35
6 Preset Data Lo 23
16
7 CRC Lo B9
16
CRC Checksum
8 CRC Hi A6
16
The MFC010 (slave) response telegram should be an ex act dupl icate of t he m aster r equest