SequenceNumberGenerator manages a monotonically increasing sequence number.
see
OPC Unified Architecture, Part 6 - $6.4.2 page 36 -
The SequenceNumber shall also monotonically increase for all messages and shall not wrap
around until it is greater than 4294966271 (UInt32.MaxValue – 1024). The first number after
the wrap around shall be less than 1024. Note that this requirement means that
SequenceNumbers do not reset when a new TokenId is issued.
The SequenceNumber shall be incremented by exactly one for each MessageChunk sent unless
the communication channel was interrupted and re-established. Gaps are permitted between the
SequenceNumber for the last MessageChunk received before the interruption and the
SequenceNumberGenerator manages a monotonically increasing sequence number.
OPC Unified Architecture, Part 6 - $6.4.2 page 36 -
The SequenceNumber shall also monotonically increase for all messages and shall not wrap around until it is greater than 4294966271 (UInt32.MaxValue – 1024). The first number after the wrap around shall be less than 1024. Note that this requirement means that SequenceNumbers do not reset when a new TokenId is issued. The SequenceNumber shall be incremented by exactly one for each MessageChunk sent unless the communication channel was interrupted and re-established. Gaps are permitted between the SequenceNumber for the last MessageChunk received before the interruption and the