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LINE SECTIONALIZING USING A PLC AND ABB PROTECTIVE RELAY
Figure 13. Segment 1 Network 10 – Start Polling Sequence
NETWORK 11 to 19 – Figures 14 to 22.
The commands 1 through 5 are the cyclic ladder logic commands which read
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REG 40129 TPU STATUS
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REG 40385 – 40401 CURRENT ANGLE DATA
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REG 40513 – 40518 VOLTAGE ANGLE DATA
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REG 40528 – 40533 POWER VALUES
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REG 41153 –41156 ALARM STATUS VALUES
The Command 6 is the trigger command for all the WRITE commands which include
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TRIP COMMAND – Write 41411 – 41415 and WRITE 41410
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RESET TARGETS – Write 41411 – 41415 and WRITE 41410
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RESET ALARMS – Write 41411 – 41415 and WRITE 41410
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RESET LATCHED DATA – Write 41411 – 41415 and WRITE 41410
The commands as illustrated in Figure 3 of this document.
Figure 14. TPU Read Status FIFO Pointer Load Logic
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