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Communication
38
Exception codes
The FSCA-01 RS-485 Adapter Module supports the Modbus
exception codes shown below.
Exception code
Name
Description
01h
ILLEGAL FUNCTION
The function code received in the
query is not an allowable action for
the server.
02h
ILLEGAL DATA
ADDRESSS
The data address received in the
query is not an allowable address
for the server.
03h
ILLEGAL DATA VALUE
A value contained in the query data
field is not an allowable value for
the server.
04h
SLAVE DEVICE FAILURE
An unrecoverable error occurred
while the server was attempting to
perform the requested action.
06h
SLAVE DEVICE BUSY
The slave is engaged in processing
a long-duration command. The
master should retransmit the
message later when the server is
free.
Summary of Contents for FSCA-01
Page 1: ...ABB Drives Modbus Protocol Manual RS 485 Adapter Module FSCA 01...
Page 2: ......
Page 4: ......
Page 6: ...Safety instructions 6...
Page 22: ...Drive configuration 22...
Page 24: ...Master configuration 24...
Page 46: ...Communication 46...
Page 50: ...Definitions 50...
Page 51: ......