Appendix
8-21
L _^ONMObk
8.3.2 RECEIVE
The command RECEIVEis to request parameter values of the Lenze controllers. The code numbers
of the requested parameter are transmitted via the RECEIVEtelegram using the following structure:
EOT AD1 AD2 C1 C2 ENQ
The abbreviations have the following meanings:
EOT (04
hex
) End of the (previous) transmission
AD1, AD2 Logic unit address of the slave to be addressed
C1, C2 Code number (two ASCII characters)
or extended addressing
ENQ (05
hex
) Station request
Structure and meaning of the code numbers (C1, C2) and the controller address (AD1, AD2) are
described in the corresponding paragraphs of the chapter SEND (see page 8-23).
Telegram response
The Lenze controller addressed via a RECEIVEtelegram generates one of the following responses:
• The controller could decode the request and is now sending the requested parameter value
to the host.
STX C1 C2 V1 ... Vn ETX BCC
• The controller could decode the request, however, a check-sum fault (parity fault) occurred
during transmission.
STX C1 C2 ? ETX BCC
• The controller could not process the request because the requested code number does not
exist.
STX C1 C2 EOT
The abbreviations have the following meanings:
STX (02
hex
) Start of text
C1, C2 Code number (two ASCII characters)
or extended addressing
V1 to Vn Parameter value (n ASCII characters)
ETX (03
hex
)Endoftext
BCC Block-check character (00 ¼ FF
hex
)
?(3F
hex
) ASCII character ”?”
EOT (04
hex
) End of the (previous) transmission
Structure and meaning of the block-check character (BCC) are described in the corresponding
paragraph of the chapter SEND (see page 8-20).
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