Toshiba DeviceNet nv Series, Instruction Manual, Page: 17 / 159

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Chapter 1
DN611B Introduction
This chapter describes the functions and features of the DN611B module, and the names and functions
of each part.
1.1 Functions and Features of the DN611B .......................................................... 2
1.2 System Configurations .................................................................................... 3
1.3 DeviceNet Network Configuration ................................................................... 4
1.3.1 Network Configuration ............................................................................. 4
1.3.2 Trunk line / Drop line and maximum cable length ................................... 4
1.3.3 Terminating resistor ................................................................................. 8
1.4 Standards ........................................................................................................ 9
1.5 Basic functions .............................................................................................. 10
1.5.1 Poll command / response method ......................................................... 10
1.5.2 Bit-strobe command / response ............................................................ 11
1.5.3 Data update cycle of controller and DN611B ........................................ 13