Potter PFC-6030 User Manual download pdf (Page 16)

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Isolator Device Load Calculation







Scenario 1: Class A Loop – Isolated Devices Conguration



Formula: Total # addressable devices + Total # isolators = Total power unit allocations (or device load)

Example of a Class A Loop – Isolated BranchesFigure 3.

Conguration Summary:

Total addressable devices = 8 (sensors only) out of 30 possible addressable points.

Total device load = 17 (calculated as follows: 8 sensors + 9 isolators) out of 127 power unit allocations.

Example: If a conguration uses 30 sensors, up to 97 isolators may be supported.

Solution: 127 - 30 = 97

LEGEND:

ISO Module/

Device

Sensor

PANEL

To tal addressable

devices = 8

To tal isolators = 9

DWG # 593-4

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