Appendix
8-22
L
_^ONMObk
Examples for a RECEIVE telegram
Example 1
Thecurrent speed setpoint (code number C46)is to beread withthe busaddress 01at thecontroller.
The host sends the following RECEIVE telegram
EOT 0 1 4 6 ENQ
The controller can respond in three different ways:
STX 4 6 3 5 . 4 ETX BCC
Valid request: The current value of the parameter C46 is 35.4 (Hz)
or
STX 4 6 ? ETX BCC
Invalid request: A check-sum fault (parity fault) occurred during data transmission
or
STX 4 6 EOT
Invalid request: Parameter C46 does not exist in this controller.
Example 2
The current operating status (code number C68) is to be read with the bus address 25 for the
controller.
The operating status is bit-coded and transmitted in the hexadecimal format.
The host sends the following RECEIVE telegram
EOT 2 5 6 8 ENQ
The controller’s response:
STX 6 8 H 0 9 0 0 ETX BCC
Valid request: The current value of the parameter C68 is ”0900”. This means:
TRIP status not active
Maximum current not reached
Quick stop not active
Pulse inhibit status free
Display of the direction of rotation CW rotation
Q
min
status not active
Controller enable enabled
Operating fault did not occur
Communication error did not occur
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