ABB REL 356, Инструкция пользователя

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LINE SECTIONALIZING USING A PLC AND ABB PROTECTIVE RELAY
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Figure 5. Network 2 Segment 1 – Cyclic Poll Logic Block
NETWORK 2 – Figure 5:
There are 6 cyclic poll read instructions (illustrated by Figure 3 above). This network actuates the time to
send each of the six instructions to the MSTR block to read the information from the TPU. If an
instruction must be executed (such as a TPU TRIP, RESET TARGET LED Instruction) which is not part of
the cyclic instruction sequence, this drum sequence is halted until all the commands in the buffer are
executed by the MSTR instruction. When the FIFO is emptied, then cyclic polling resumes and this logic
construct is energized.
NETWORK 3 – Figure 6:
As illustrated in Figure 3, all instruction parameterization registers for the MSTR instruction is stored in the
compact 6X memory registers. This network instruction (upon a change of the CTR instruction’s cyclic
poll) reads the block in 6X memory and places it in 4X memory. The contents are then moved into the
MSTR block. Register 40100 = a 2 (read instruction) or a 1 (write instruction) based upon the data being
read or written to the TPU. Registers 40102 through 40107 contain the MSTR parameters for the routing
address ( in this case the TPU is Address 1 Path 1) and such information as the number of registers to be
transferred/read and the address in the TPU (to be read or written).
Figure 6. Network 3 Figure 6 – 6X Pointer Data