Any notifications stored in the Events registers (see chapter 6.3.4) or in the encoder
status registers (see chapter 6.4.1) during reset need to be acknowledged once after
initialization. If a notification in one of these registers persists after acknowledgment
the problem handling needs to follow the recommendations as shown in the previous
chapters.
7.6.6 Long message error code
Due to the complexity of "long messages", errors occurring here are reported in detail to
the user.
If the motor feedback system establishes an error when accessing a resource, this error
is displayed as an error message (see chapter 7.6.4). In addition the ERR flag is set,
the LEN characteristic is set to 2 bytes (01B) and the PC_BUFFER0 and PC_BUFFER1
DATA registers contain an error code.
By means of this error code, the errors in a "long message" transaction can be under‐
stood in detail.
The table below contains the error codes and their meaning.
NOTE
It should be noted that the value of the PC_BUFFER1 register corresponds to the error
code in the ENC_ST encoder status register (see chapter 6.4.1).
Table 43: "Long message" error codes
PC_BUFFER1 PC_BUFFER0 Meaning of the error code
40h 10h Resource address not installed in the encoder
11h Incorrect length for resource access given
12h Incorrect length for direct resource access given
13h Offset address too high
14h Invalid offset address
15h Invalid "long message" characteristic
16h Missing offset address
41h 10h Write access not possible
11h Read access not possible
12h Write access denied
13h Read access denied
14h Write access for direct resource access denied
42h 10h Resource database entry damaged
11h Time overrun during resource access
12h Internal processing error during resource access
43h 11h File name was not found
12h Invalid address for file access
13h File size may not be altered
14h Memory location for files full
15h File allocation table damaged
16h No file loaded for action
17h File exists with the same name
CENTRAL FUNCTIONS 7
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