Panasonic FP0R - Functions and Types; Communication Modes and Communication Ports; Computer Link; General-Purpose Serial Communication

7-2
7.1 Functions and Types
7.1.1 Communication Modes and Communication Ports
On the FP0R, four different communication modes are available.
According to the communication mode to be used, the usable communication ports vary.
Communication mode
Usable communication port
Computer link
Tool port
USB port
COM port
General-purpose serial
communication
Tool port
COM port
PC(PLC) link
COM port
MODBUS RTU
COM port
7.1.2 Computer Link
- Computer link is used for communication with a computer connected to the PLC. Instructions
(command messages) are transmitted to the PLC, and the PLC responds (sends response messages)
based on the instructions received.
- A proprietary MEWNET protocol called MEWTOCOL-COM is used to exchange data between the
computer and the PLC.
- The PLC answers automatically to the commands received from the computer, so no program is
necessary on the PLC side in order to carry out communication.
7.1.3 General-purpose Serial Communication
- With general-purpose serial communication, data can be sent back and forth between an external
device connected such as an image processing device and a bar code reader.
- Reading and writing of data is done using a ladder program in the FP0R, while reading and writing of
data from an external is handled through the data registers.