Published: July 9, 2007
Data streaming synchronization to multiple hosts modified in SNAP PAC and Ultimate I/O controllers
Feature is changed beginning in version: R8.0a SNAP PAC firmware, R7.2d Ultimate I/O firmware
Opto 22 has modified stream synchronization.
The streaming logic is changed so the synchronization code is incremented only after sending the stream packet to all clients:
Send to Client 1: stream data x, sync code: 1
Send to Client 2: stream data x, sync code: 1
Send to Client 3: stream data x, sync code: 1
Send to Client 1: stream data y, sync code: 2
Send to Client 2: stream data y, sync code: 2
Send to Client 3: stream data y, sync code: 2
Send to Client 1: stream data z, sync code: 3
Send to Client 2: stream data z, sync code: 3
Send to Client 3: stream data z, sync code: 3
Client 1 receives packets with sync code 1, 2, and 3. With this behavior, each client can assume stream packet(s) were dropped if the synchronization code increases by more than one from one stream packet to the next.
Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
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