ABB FSCA-01, Руководство пользователя

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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.