Technology, to stay in sync, may have to move slowly. Perhaps it will move most slowly in the geographically distributed infrastructure. I just saw this posting in Energy Business:
Evaluating Pipeline Projects - Dominion Resources is about to make a major investment in its pipeline infrastructure. Its Ohio subsidiary has filed an application with Ohio regulators to replace nearly 20 percent of its 21,000-mile pipeline system over 25 years at a current cost of $2.6 billion. Once approved, modernization will begin next year.
Here is a 25 year plan to a major technology upgrade. What do you bet the the electronics/Controls are based on the 'de jure' Modbus protocol, now perhaps 35 years old? Protocols between things- especially things made by different companies- tend to change very slowly.
Can you name a protocol, still in use today, from the end of the century before last?
Lawrence Ricci
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