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Manual – MOVIDRIVE® MDX60B/61B Communication and Fieldbus Unit Profile
4
MOVILINK® protocol via RS485 transmission method
Serial Interfaces of MOVIDRIVE® B
Processing
request/response
telegrams
The inverter only processes request telegrams that were received without errors and
were correctly addressed. The following reception errors are detected:
• Parity error
• Character frame error
• Exceeded character delay of request telegrams
• Incorrect address
• Incorrect PDU type
• Incorrect BCC
• RS485 timeout (slave)
• Elapsed response time (master)
The inverter does not respond to incorrectly received request telegrams! These
reception errors have to be evaluated in the master to ensure correct data transmission.
TIPS
If RS485 or RS232 communication is to be transmitted via gateways, COM server, or
modem connections, make sure that not only the character (start bit, 8 data bits, 1 stop
bit, even parity) is correct but also that start delimiter and character delay time are
complied with:
• Max. character delay of 3.43 ms between 2 characters of a telegram
• Min. 3.44 pause before the start delimiter
Else, the individual characters cannot be clearly assigned to the various telegrams.
Содержание MOVIDRIVE MDX60B
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