Festo SEC-AC-305-CO, Manual

Page: 60 / 272

4. Access methods/SDO access
4−22
Festo P.BE−SEC−AC−CO−E N en 0802a
Besides the error messages the
boot_up_message
of the
servo controller is also transferred on the identifier 080
h
+
node numbe r. The message can be identified easily as it does
not contain any data.
4.5.2 Objects
Object 1003
h
: pre_defined_error_field
The error codes of the error messages are recorded in a four−
stage error memory. This memory is structured like a shift
register so that always the last error is stored in the object
standard_error_field_0 . By a read access to the object
pre_defined_error_field you can find out how many error
messages are recorded in the error memory at the moment.
The error memory is deleted by writing the value 00h into the
object
pre_defined_error_field
. In addition an error reset
(see chapter 6.1: State diagram: State transition 15) has to be
executed to reactivate the power stage of the servo controller
after an error.
pre_defined_error_field
Index Comment Type Acc. Default Value
1003
h
_00
h
pre_defined_error_field UINT8 rw 00
h
1003
h
_01
h
standard_error_field_0 UINT32 ro 00000000
h
1003
h
_02
h
standard_error_field_1 UINT32 ro 00000000
h
1003
h
_03
h
standard_error_field_2 UINT32 ro 00000000
h
1003
h
_04
h
standard_error_field_3 UINT32 ro 00000000
h