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Data is automatically received in the receive buffer defined in the system registers. For
CPU
detailed information, see Receiving Data from External Devices (see page 747).
communication
ports
Data is automatically received in the MCU unit. The data received can be moved to the
MCU
CPU receive buffer using the instruction F161_MRCV (see page 755).
communication
ports
PLC link mode
PLC Link is an economic way of linking PLCs using a twisted-pair cable and the MEWNET protocol. Data is
shared with all PLCs by means of dedicated internal relays called link relays (L) and data registers called link
registers (LD). The statuses of the link relays and link registers of one PLC are automatically fed back to the
other PLCs on the same network. The link relays and link registers of the PLCs contain areas for sending and
areas for receiving data. Station numbers and link areas are allocated using the system registers.
For detailed information on setting the communication parameters and the link area, please refer to the
hardware manuals of the corresponding units.
Data transfer via communication ports
713
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