CTI 2572 Technical Overview Manual
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TABLE OF CONTENTS
CHAPTER 1. INTRODUCTION.................................................................................................. 1
1.1 Description ........................................................................................................................... 1
1.2 2572 Functions ..................................................................................................................... 2
CHAPTER 2. LOCAL AREA NETWORK OVERVIEW ............................................................ 3
2.1 Master/Slave vs. Local Area Networks ................................................................................ 3
2.2 IEEE 802.5 (Token-Ring) .................................................................................................... 4
2.3 Ethernet and IEEE 802.3 ...................................................................................................... 5
2.4 IEEE 802.4 (Token Bus) ...................................................................................................... 6
2.5 Future Technologies ............................................................................................................. 6
2.6 Summary .............................................................................................................................. 7
CHAPTER 3. ETHERNET OVERVIEW...................................................................................... 9
3.1 ISO Reference Model ........................................................................................................... 9
3.2 Ethernet Topologies and Media - Physical Layer............................................................... 10
3.3 Ethernet Protocol - Data Link Layer .................................................................................. 13
3.4 Ethernet Addresses ............................................................................................................. 15
3.5 Requirement for Higher Level Protocols ........................................................................... 15
CHAPTER 4. NETWORK PROTOCOLS .................................................................................. 17
4.1 Connectionless vs. Connection Oriented Protocols ........................................................... 17
4.2 Common LAN Protocols.................................................................................................... 18
CHAPTER 5. TCP/IP OVERVIEW ............................................................................................ 21
5.1 TCP/IP Components........................................................................................................... 21
5.2 Internet Protocol ................................................................................................................. 22
5.3 Address Resolution Protocol (ARP) .................................................................................. 24
5.4 User Datagram Protocol (UDP).......................................................................................... 24
5.5 Transmission Control Protocol (TCP)................................................................................ 25
5.6 Berkeley Sockets ................................................................................................................ 27
5.7 2572 TCP/IP Support ......................................................................................................... 27
CHAPTER 6. PLC COMMAND INTERFACE .......................................................................... 29
6.1 Non Intelligent Terminal Protocol....................................................................................... 29
6.2 Task Codes .......................................................................................................................... 30
