Modbus TCP / Modbus UDP vacon • 89
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7
Figure 38. The Modbus TCP/UDP function in case of timeout
7.5 Quick setup
Following these instructions, you can easily and fast set up your Modbus for use:
In the AC drive application: Choose Fieldbus as the active control place (see AC drives User's
Manual).
In the Master software:
1. Set the settings in the master software.
2. Set the Control Word to '0' (2001).
3. Set the Control Word to '1' (2001).
4. Drive's status is RUN.
5. Set the Reference value to '5000' (50.00%) (2003).
6. Actual speed is 5000 (25.00 Hz if MinFreq is 0.00 Hz and MaxFreq is 50.00 Hz).
7. Set the Control Word to '0' (2001).
8. Drive's status is STOP.
Communicating
Received packet during
communication
timout time?
Timeout
CheckYes
Yes
Closed
Yes
No
No
No
Broken
Communication timeout zero?
Connection closed or broken?
FAULT! No fault
Has second connection with
communication timeout
other than zero?
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