HEIDENHAIN PROFIBUS-DP (DPV2) - Manual (Page 88)

Functionality in the PROFIBUS DPV2 device
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8.14.6 I&M functions
In addition to the PROFIdrive parameter 964, Device identification,
I&M functions are supported by the devices. The I&M functions
can be accessed with data set index 255. The following I&M
functions are supported.
I&M parameter Octets Comment
Header
Manufacturer specific
10 Not used
I&M block
MANUFACTURER_ID
2 Manufacturer Id
ORDER_ID 20 Encoder part number
SERIAL_NUMBER 16 Encoder serial number
HARDWARE_REVISION 2 Not used
SOFTWARE_REVISION 4 Software revision
REVISION_COUNTER 2 Not used
PROFILE_ID 2 Encoder profile number
PROFILE_SPECIFIC_TYPE 2 Type of encoder
IM_VERSION 2 Version of the I&M profile
IM_SUPPORTED 2 Value=0 means support of I&M
Table 56 Supported I&M functions