8 APPENDIXES
8-13
8.2.8 Differences between general-purpose Ethernet and FL-net
Since the FL-net is a network for FA (factory automation) fields, it cannot use all the
general-purpose Ethernet devices. Some devices are inapplicable to the FL-net due to
their noise immunity or environment resistance.
The FL-net is required to offer a specified degree of real-time communication response
capability for control purposes. Therefore, it can be connected to FL-net-compliant
controllers and other control devices only.
The FL-net employs a cyclic communication method that exercises the broadcast features
of 10BASE5/10BASE-T based UDP/IP communication. Therefore, the following
limitations are imposed due to the current standard.
• Currently supported devices are limited to 10 Mbps Ethernet LAN devices.
• Connections to the other general-purpose Ethernet networks cannot be established.
• The TCP/IP communication features are not supported.
• The use of a switching hub produces no beneficial effect.
• The inability to function may result if a router or the like is used.
Summary of Contents for FL.NET
Page 1: ......
Page 2: ......
Page 29: ...1 OVERVIEW ...
Page 33: ...2 FL NET MODULE ...
Page 42: ...3 FL NET MODULE INSTALLATION ...
Page 46: ...4 FL NET MODULE WIRING PROCEDURES ...
Page 53: ...5 USER GUIDE ...
Page 203: ...5 USER GUIDE 5 151 Sample printout ...
Page 206: ...6 MAINTENANCE ...
Page 210: ...7 TROUBLESHOOTING ...
Page 225: ...8 APPENDIXES ...