Exception Codes; Communication Profiles - ABB FSCA-01 User Manual

Exception codes

The adapter module supports the Modbus exception codes shown
below.
Exception
Code
01h ILLEGAL FUNCTION
02h ILLEGAL DATA
ADDRESSS
03h ILLEGAL DATA VALUE A value contained in the query data
04h SLAVE DEVICE
FAILURE
06h SLAVE DEVICE BUSY The server is engaged in

Communication profiles

Modbus is an application layer messaging protocol. It describes
how data is transferred between a master and a server, but not the
meaning of that data. Communication profiles are used to define
the meaning of the data.
Name
The function code received in the
query is not an allowable action for
the server.
The data address received in the
query is to an allowable address
for the server.
field is not an allowable value for
the server.
An unrecoverable error occurred
while the server was attempting to
perform the requested action.
processing a long-duration
command. The master should
retransmit the message later when
the server is free.
Communication protocol 73
Description