FEATURE INFORMATION
6-10
The slave response to an error (other than CRC error) will be:
SLAVE ADDRESS - 1 byte
FUNCTION CODE - 1 byte (with MSbit set to 1)
EXCEPTION CODE - 1 byte
CRC - 2 bytes
The 565 Feeder Management Relay implements or reserves
the following exception response codes:
01 - ILLEGAL FUNCTION
The function code transmitted is not one of the functions
supported by the 565 Feeder Management Relay.
02 - ILLEGAL DATA ADDRESS
The address referenced in the data field transmitted by the
master is not an allowable address for the 565 Feeder
Management Relay, or requested number of registers does
not match total length of referenced internal registers.
03 - ILLEGAL DATA VALUE
The value referenced in the data field transmitted by the
master is not within range for the selected data address.
Could be implemented in the future.
04 - FAILURE IN ASSOCIATED DEVICE
A device connected to the addressed slave device has failed
and the data requested cannot be sent.
06 - BUSY, REJECTED MESSAGE
The transmission was received without error but the request
could not be performed. Reserved.
08 - MEMORY PARITY ERROR
A hardware error has occurred in the 565 Feeder Manage-
ment Relay. For example, a RAM failure has occurred and the
data requested cannot be sent. Reserved.
To Next Page
Loading...
