Provides step-by-step instructions and precautions for installing communication cassettes onto the FP0H control unit, emphasizing power-off procedures.
Explains how to set the purpose and communication conditions for each port, including available functions and parameter settings like baud rate and data length.
Describes methods for setting communication conditions using either system register settings via tool software or directly using system register instruction SYS1.
Lists supported MODBUS RTU commands, including function codes, reference numbers, and corresponding FP0H supported functions for slave and master modes.
Explains receiving data from external devices using COM ports, including sample programs and receive buffer settings, for types without and with Ethernet.
Details flag operations related to transmission and reception, particularly for header/terminator settings and their impact on the F159 (MTRN) instruction.
Lists special relays related to COM communication, detailing their functions for error flags, mode flags, reception/transmission status, and PLC link assurance.
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