HEIDENHAIN PROFIBUS-DP (DPV2) - Manual (Page 57)

Acyclic parameter data
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7.4 Detailed description of supported parameters
7.4.1 Parameter 918, read only
918 unsigned int, presents the node address of the device.
7.4.2 Parameter 922, read only
922 unsigned int, presents which telegram is used. Telegram
81, 82, 83 or 84 is possible.
7.4.3 Parameter 925, read/write
925 unsigned int, maximum allowed MLS (Master sign-of-life)
error. Parameter 925 may be used to set a maximum on how
many consecutive Sign-of-life failures may occur.
7.4.4 Parameter 964, read only
964 unsigned int, Device indentification
964[0] = Manufacturer Id. This is set during manufacturing of the
encoder.
964[1] = 0 DU Drive unit type, always set to 0.
964[2] = 201 Software version
964[3] = 2009 Software year
964[4] = 2805 Software day and month
964[5] = 1 Number of drive objects (D
7.4.5 Parameter 965, read only
965 OctetString 2, Encoder profile number
965[0] =0x3D Encoder profile number
965[1] = 31 or 41 Encoder profile version, set by customer
(user_parameters)
7.4.6 Parameter 971, read/write
971 unsigned int, Store the local parameter set to a non volatile
memory. Preset value is saved when writing value 1 and is set to
0 by the encoder firmware when finished. This means that the
preset value has been saved when reading back value 0.
7.4.7 Parameter 974, read only
974 unsigned int
974[0] = 96 Max array length supported by parameter channel.
974[1] = 1 Numbers of multi parameters, 1 = no support of
multi parameters.
974[2] = 1000 max time to process parameter request,
n x 10 ms.