GEK-113032A W650 Wind Generator Protection System C-3
APPENDIX C C.1 DNP 3.0 PROTOCOL SETTINGS
C
38. Msg Fragment Size: This setting determines the size, in bytes, at which message fragmentation occurs. Large
fragment sizes allow for more efficient throughput; smaller fragment sizes cause more application layer
confirmations to be necessary which can provide for more robust data transfer over noisy communication channels
39-48. Binary Input Block x: These settings allow customization and change of the size of DNP Binary Inputs point list.
The default Binary Inputs point list contains 160 points representing binary states that are configured using
“Setpoint->Relay Configuration” menu from the EnerVista 650 Setup program. These 160 binary states are
grouped in 10 blocks of 16 points each. There are 128 bits (8 blocks of 16) called Control Events and 32 bits (2
blocks of 16) corresponding to the states of 16 switchgears available in W650 relay. If not all of the 160 points are
required in the DNP master, a custom Binary Inputs point list can be created by selecting up to 10 blocks of 16
points. Each block represents 16 Binary Input points. Block 1 represents Binary Input points 0-15, block 2
represents Binary Input points 16- 31, block 3 represents Binary Input points 32-47, etc. The minimum number of
Binary Input points that can be selected is 16 (1 block). If all of the Binary Input Block x settings are set to “NOT
USED”, the default list of 160 points will be in effect. The W650 will form the Binary Inputs points list from the
Binary Input Block x settings up to the first occurrence of a setting value “NOT USED”. Permitted values for these
settings are: NOT USED, CTL EVENTS 1-16, CTL EVENTS 17-32, CTL EVENTS 33-48, CTL EVENTS 49-64, CTL
EVENTS 65-80, CTL EVENTS 81-96, CTL EVENTS 97-112, CTL EVENTS 113-128, SWITCHGEAR 1-8,
SWITCHGEAR 9-16.
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