Dn912 Introduction - Toshiba nv Series Instruction Manual

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Chapter 1

DN912 Introduction

This chapter describes the functions and features of the DN912 module, and the names and functions
of each part.
1.1 Functions and Features of the DN912 ............................................................ 2
1.2 System Configurations .................................................................................... 3
1.3 DeviceNet Network Configuration ................................................................... 5
1.3.1 Network Configuration ............................................................................. 5
1.3.2 Trunk line / Drop line and maximum cable length ................................... 5
1.3.3 Terminating resistor ................................................................................. 9
1.4 Standards ...................................................................................................... 10
1.5 Basic functions .............................................................................................. 11
1.5.1 Poll command / response method ......................................................... 11
1.5.2 Bit-strobe command / response ............................................................ 12
1.5.3 Data update cycle of controller and DN912 .......................................... 14
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