890053-03-01
890053-
03-00
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Connecting with Other Products
10.3.3 Exception (Except) Frame
An exception frame is a response frame from a server when an error occurs while
responding to the client.
The following table explains the components of an exception frame.
Error frame
Length
Value
Error code
1bytes
0x80 + function code requested by
the client
Exception code
1bytes
0x0000
–0xFFFF
Exception code
Type
Code
Description
ILLEGAL FUNCTION
0x01
Unsupported function has been requested
ILLEGAL DATA
ADDRESS
0x02
An unused address has been requested or modification
has been requested for the data at an unused address.
ILLEGAL DATA
VALUE
0x03
A data modification request has been made out of the
range of the available value.
SLAVE DEVICE
FAILURE
0x04
Server error occurred
(CAN communication error with the drive,
communication board initialization error, or data
communication error with the drive)
SLAVE DEVICE
BUSY
0x06
Server is unable to respond because it is executing
another process
(in the middle of a drive parameter initialization or the
initial setting of the communication board)
WRITE PERMITION
ERROR
0x20
Unique code for Benshaw Inverters.
An attempt was made to change a write-protected
parameter
