Monthly Archives: September 2010

The all too often misunderstood Hot Standby In-line Terminator Assembly

By Bob Culley In the Modicon redundancy, or Hot Standby (HSBY) systems the two PLCs both contain the same programs. The Primary PLC is the one actually running the process, while the Standby unit is waiting to pick up where … Continue reading

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Fiber Modems with Modicon Remote I/O HSBY systems

“Third party fiber modems aren’t compatible with Modicon HSBY systems….” Continue reading

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