What Is Fl-Net; Figure 1-1 Fa Control Network Configuration Example - Hitachi FL.NET User Manual

1 OVERVIEW

1.1 What is FL-net

FL-net is an open FA network that the FA Open Systems Promotion Group (FAOP) standardized
in the Manufacturing Science and Technology Center (MSTC), which is an organization affiliated
to the Ministry of International Trade and Industry. The Japan Electrical Manufacturers'
Association (JEMA) prepared the specification.
As shown in Figure 1-1, this network can interconnect programmable controllers (PLCs),
computer numerical control (CNC) devices, and various other factory automation controllers and
personal computers of many different brands to exercise control and monitoring functions.
Computers
Controllers
Devices

Figure 1-1 FA Control Network Configuration Example

PC PC
Higher-level LAN Ethernet (TCP/IP, UDP/IP)
FL-net (Ethernet based control network)
PLC PLC
Field network
Server
PC EWS
PLC
Sensor actuator
1-2
WAN
Panel
CNC
computer
RC