ifm electronic RN3001 - Manual (Page 25)

UK
Encoder with Profibus interface
25
11.2 Supported diagnostic messages
The individual diagnostic inputs are described in detail below�
11.2.1 Extended diagnostic header
Diagnostic byte 7 contains the length of the extended diagnosis (including the
diagnostic header)�
11.2.2 Memory error
Via bit 4 in diagnostic by 8 it is indicated if a memory error has occurred�
In this case memory error means that the EEPROM of the encoder does no longer
function reliably and non-volatile storage (e�g� of the zero point shift) is no longer
ensured�
Bit Definition 0 1
4 Memory error
(Fault in
EEPROM)
No Yes
11.2.3 Operating status
The operating parameters set via parameter setting can be enquired via diagnostic
byte 9�
Bit Definition 0 1
0 Rotational direction CW CCW
1 Class 2 functionality Off On
2 Diagnosis routine Off On
3 Scaling function Off On
11.2.4 Encoder type
The design of the encoder can be enquired via diagnostic byte 10�
Byte 10 Definition
0 Singleturn encoder
1 Multiturn encoder
11.2.5 Singleturn resolution
The physical resolution per revolution of the encoder is stored in the diagnostic
bytes 11���14�