ABB ACH550-01 User Manual page 297

ACH550 User's Manual
Code Description
5206 FRAME ERRORS
Contains a count of the characters with a framing error that the bus
receives. For high counts, check:
• Communication speed settings of devices connected on the bus –
they must not differ.
• Ambient electro-magnetic noise levels – high noise levels generate
errors.
5207 BUFFER OVERRUNS
Contains a count of the characters received that cannot be placed in the
buffer.
• Longest possible message length for the drive is 128 bytes.
• Received messages exceeding 128 bytes overflow the buffer. The
excess characters are counted.
5208 CRC ERRORS
Contains a count of the messages with a CRC error that the drive
receives. For high counts, check:
• Ambient electro-magnetic noise levels – high noise levels generate
errors.
• CRC calculations for possible errors.
Parameter listing and descriptions
Range
0...65535
0...65535
0...65535
285