User manual

33002479 06 07/2008 343
C
Quantum Ethernet TCP/IP Modbus
Application Protocol
At a Glance
Introduction This chapter describes the Quantum Ethernet TCP/IP Modbus Application Protocol.
What's in this
Chapter?
This chapter contains the following topics:
Topic Page
Modbus Application Protocol Overview 344
Modbus Application Protocol PDU 346
Modbus Application Protocol Service Classes 348
Modbus Application Protocol PDU Analysis 349
TCP/IP Specific Issues 351
Reference Documents 352