18.EtherCAT COMMUNICATION
18.4.2 SDO Abort Code
When an error occurs in the SDO communication, the following error messages are returned with the Abort
SDO Transfer service.
The memory is out of the range.
Attempt to read to a write only object
Reading is attempted to a write-only object.
Attempt to write to a read only object
Writing is attempted to a read-only object.
Object mapped to RxPDO, SDO download blocked.
SDO Download is executed to an object mapped to
RxPDO.
The object does not exist in the object dictionary
A non-existent index is specified.
General parameter incompatibility reason.
An unsupported command is issued.
Data type does not match,
length of service parameter too high.
The data type does not match. The data length is too
long.
Data type does not match,
length of service parameter too short.
The data type does not match. The data length is too
short.
A non-existent Sub Index is specified.
Value range of parameter exceeded
A parameter value outside the range is specified.
Value of parameter written too high
The value of the parameter written is too large.
Value of parameter written too low
The value of the parameter written is too small.
Data cannot be transferred or stored to the
application because of local control.
Writing is limited in the device.
Data cannot be transferred or stored to the
application because of the present device state.
Data cannot be read or written due to the current device
status.
18.5 CiA 402 DRIVE PROFILE
18.5.1 FSA state
The inside state of the _ driver is controlled based on the FSA state, defined in the CiA 402 drive profile
standard. Figure 5.1 and Table 5.1 show the transition conditions between the FSA states. The states are
switched when the master sends a command following the table (sets Controlword) with the PDO
communication established (the AL state Operational reached). When the state has transitioned from Not
ready to switch on, which is right after the power on, to Operation enabled with the predetermined procedure,
the servo motor becomes ready to operate.