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(3) Connection between the Ethernet module and external devices
(a) Communication procedures
• Section 5.1 describes an outline of the communication procedures
(b) Connections with the external devices
• Section 5.6 describes the connections (open and close processing) for
each communication method (TCP/IP) and the open method (Active,
Passive), including programming procedures.
(4) Details on the data communication functions
(a) Communication functions
• Section 1.2 describes an overview of the Ethernet module communication
functions and related section numbers that can be referenced for more
detailed explanations.
(5) Data communication functions and programming
(a) Reading from and writing to the PLC
• Data is read from and written to the PLC with communication functions
using MC protocol.
• Chapter 8 is an overview of the communication functions using MC protocol.
• Chapter 9 is a detail on the communication functions using MC protocol.
(b) Sending and receiving data between the PLC and the external devices
• Data communication between the PLC and external devices is performed
with the fixed buffer communication functions.
• Chapters 6 and 7 explains the communication functions and programming
using the fixed buffers.
(6) Checking for error occurrences and taking corrective actions
(a) Error codes
• Chapter 11 describes troubleshooting, how to check for errors, and the
contents and reference for error codes.
(b) Error code storage area in the buffer memory of the Ethernet module
• Section 11.3 describes the error code storage areas in the buffer memory.
FX Configurator-EN
Using FX Configurator-EN to set parameters, the sequence programs for
communicating with external devices can be simplified.
For details on the parameter settings from FX Configurator-EN, refer to the
FX Configurator-EN operation manual.