Update

New VIM firmware version that brings improvements in performance

Improvements:

  • Modified connection method to not use an ICMP ping before the connection attempt. Instead, the connection attempt is started and a 15-second timeout is asserted. This new method optimizes connecting to field devices, particularly in redundant systems.
  • Streamlined and optimized VIM/VIM communications for faster data exchange.
  • Modified redundancy switchover status reporting to DeltaV. Furthermore, this change improves switchover time.

Resolved Issues:

  • Modified receive handling of 6-byte ModbusTCP message header in case field device does not send all 6 bytes at once. Previously, if the VIM did not receive all 6 bytes, it discarded all already received bytes and started afresh receive. This caused a communication loss and inability to communicate with the field device. This correction overcomes the field device limitation where the response message is sent in small fragments.
  • Modified dataset error reporting so that an error is asserted only if both connections in a dual IP redundant system are down. An error is not asserted if one connection is down and the second is active.
Receive Important Update Messages Stay tuned for upcoming Schneider Electric Modbus TCP updates

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